Submit Search
Upload
Irregularities in Traffic Forecasts
ā¢
1 like
ā¢
428 views
B
Basil Psarianos
Follow
Irregularities in Traffic Forecasting based on findings in the greater Athens area-greece
Read less
Read more
Design
Report
Share
Report
Share
1 of 8
Download now
Download to read offline
Recommended
1 s2.0-s187704281101398 x-main
1 s2.0-s187704281101398 x-main
cristianguarnizo21
Ā
Masters Dissertation Posters 2017
Masters Dissertation Posters 2017
Institute for Transport Studies (ITS)
Ā
121808 - FINAL Report on the Potential Impact of Regional Transit on Metropol...
121808 - FINAL Report on the Potential Impact of Regional Transit on Metropol...
John Crocker
Ā
Feasibility study of_metro_transport_case_study_madurai
Feasibility study of_metro_transport_case_study_madurai
Durga Rai
Ā
Improving transport in Malta using GIS and LBS
Improving transport in Malta using GIS and LBS
Matthew Pulis
Ā
A consistent method to determine flexible criteria weights
A consistent method to determine flexible criteria weights
armankoopal
Ā
2.benchmarking efficiency
2.benchmarking efficiency
libfsb
Ā
A Methodological Framework to Estimate GHG from Travel Pattern of Tyne & Wear...
A Methodological Framework to Estimate GHG from Travel Pattern of Tyne & Wear...
inventionjournals
Ā
Recommended
1 s2.0-s187704281101398 x-main
1 s2.0-s187704281101398 x-main
cristianguarnizo21
Ā
Masters Dissertation Posters 2017
Masters Dissertation Posters 2017
Institute for Transport Studies (ITS)
Ā
121808 - FINAL Report on the Potential Impact of Regional Transit on Metropol...
121808 - FINAL Report on the Potential Impact of Regional Transit on Metropol...
John Crocker
Ā
Feasibility study of_metro_transport_case_study_madurai
Feasibility study of_metro_transport_case_study_madurai
Durga Rai
Ā
Improving transport in Malta using GIS and LBS
Improving transport in Malta using GIS and LBS
Matthew Pulis
Ā
A consistent method to determine flexible criteria weights
A consistent method to determine flexible criteria weights
armankoopal
Ā
2.benchmarking efficiency
2.benchmarking efficiency
libfsb
Ā
A Methodological Framework to Estimate GHG from Travel Pattern of Tyne & Wear...
A Methodological Framework to Estimate GHG from Travel Pattern of Tyne & Wear...
inventionjournals
Ā
USING THE ANALYTIC HIERARCHY PROCESS AND GIS FOR DECISION MAKING IN RURAL HIG...
USING THE ANALYTIC HIERARCHY PROCESS AND GIS FOR DECISION MAKING IN RURAL HIG...
IAEME Publication
Ā
Methods of route assignment
Methods of route assignment
Kathan Sindhvad
Ā
Traffic assignment
Traffic assignment
MNIT,JAIPUR
Ā
Traffic & transportation ā ii
Traffic & transportation ā ii
prahlad reddy
Ā
Urban transportation system - methods of route assignment
Urban transportation system - methods of route assignment
Student
Ā
Urban transport (MODAL SHIFT ANALYSIS)
Urban transport (MODAL SHIFT ANALYSIS)
syafiqahbahrin
Ā
Transporation model
Transporation model
bernadine ansano
Ā
4 estimating benefits-from_specific_highwa
4 estimating benefits-from_specific_highwa
Sierra Francisco Justo
Ā
Project on Traffics jams and Dell EMC CMR University with references
Project on Traffics jams and Dell EMC CMR University with references
Syed Sadath
Ā
Kate White 101 solutions-10-12-2015-NCST Brief-Induced_Travel
Kate White 101 solutions-10-12-2015-NCST Brief-Induced_Travel
Adina Levin
Ā
Influence of tradable credits on travel demand and vehicle emissions
Influence of tradable credits on travel demand and vehicle emissions
Institute for Transport Studies (ITS)
Ā
Benchmarking TOD
Benchmarking TOD
Jennifer Yeamans (Olsen)
Ā
Ieeepro techno solutions 2013 ieee embedded project - emergency management ...
Ieeepro techno solutions 2013 ieee embedded project - emergency management ...
srinivasanece7
Ā
The Driving Factors Behind Successful Carpool Formation and Use
The Driving Factors Behind Successful Carpool Formation and Use
Smart Commute
Ā
Providing Transportation Choices: The Region of Durham Experience
Providing Transportation Choices: The Region of Durham Experience
Smart Commute
Ā
Chapter 6 Fundamentals of traffic flow
Chapter 6 Fundamentals of traffic flow
Fayaz Rashid
Ā
Wang et al DRT Greater Manchester presentation TRB 2012
Wang et al DRT Greater Manchester presentation TRB 2012
Chao Wang
Ā
Smart Commute Initiative: Establishment of a Multijurisdictional Workplace-ba...
Smart Commute Initiative: Establishment of a Multijurisdictional Workplace-ba...
Smart Commute
Ā
Predictive modeling of travel time
Predictive modeling of travel time
AJAYI SAMUEL
Ā
De juegos, sueƱos y esperanza. cuento de felipe
De juegos, sueƱos y esperanza. cuento de felipe
ada48salamanca
Ā
17 September 2012
17 September 2012
renabivens
Ā
Portafolio
Portafolio
Shirley Verdesoto
Ā
More Related Content
What's hot
USING THE ANALYTIC HIERARCHY PROCESS AND GIS FOR DECISION MAKING IN RURAL HIG...
USING THE ANALYTIC HIERARCHY PROCESS AND GIS FOR DECISION MAKING IN RURAL HIG...
IAEME Publication
Ā
Methods of route assignment
Methods of route assignment
Kathan Sindhvad
Ā
Traffic assignment
Traffic assignment
MNIT,JAIPUR
Ā
Traffic & transportation ā ii
Traffic & transportation ā ii
prahlad reddy
Ā
Urban transportation system - methods of route assignment
Urban transportation system - methods of route assignment
Student
Ā
Urban transport (MODAL SHIFT ANALYSIS)
Urban transport (MODAL SHIFT ANALYSIS)
syafiqahbahrin
Ā
Transporation model
Transporation model
bernadine ansano
Ā
4 estimating benefits-from_specific_highwa
4 estimating benefits-from_specific_highwa
Sierra Francisco Justo
Ā
Project on Traffics jams and Dell EMC CMR University with references
Project on Traffics jams and Dell EMC CMR University with references
Syed Sadath
Ā
Kate White 101 solutions-10-12-2015-NCST Brief-Induced_Travel
Kate White 101 solutions-10-12-2015-NCST Brief-Induced_Travel
Adina Levin
Ā
Influence of tradable credits on travel demand and vehicle emissions
Influence of tradable credits on travel demand and vehicle emissions
Institute for Transport Studies (ITS)
Ā
Benchmarking TOD
Benchmarking TOD
Jennifer Yeamans (Olsen)
Ā
Ieeepro techno solutions 2013 ieee embedded project - emergency management ...
Ieeepro techno solutions 2013 ieee embedded project - emergency management ...
srinivasanece7
Ā
The Driving Factors Behind Successful Carpool Formation and Use
The Driving Factors Behind Successful Carpool Formation and Use
Smart Commute
Ā
Providing Transportation Choices: The Region of Durham Experience
Providing Transportation Choices: The Region of Durham Experience
Smart Commute
Ā
Chapter 6 Fundamentals of traffic flow
Chapter 6 Fundamentals of traffic flow
Fayaz Rashid
Ā
Wang et al DRT Greater Manchester presentation TRB 2012
Wang et al DRT Greater Manchester presentation TRB 2012
Chao Wang
Ā
Smart Commute Initiative: Establishment of a Multijurisdictional Workplace-ba...
Smart Commute Initiative: Establishment of a Multijurisdictional Workplace-ba...
Smart Commute
Ā
Predictive modeling of travel time
Predictive modeling of travel time
AJAYI SAMUEL
Ā
What's hot
(19)
USING THE ANALYTIC HIERARCHY PROCESS AND GIS FOR DECISION MAKING IN RURAL HIG...
USING THE ANALYTIC HIERARCHY PROCESS AND GIS FOR DECISION MAKING IN RURAL HIG...
Ā
Methods of route assignment
Methods of route assignment
Ā
Traffic assignment
Traffic assignment
Ā
Traffic & transportation ā ii
Traffic & transportation ā ii
Ā
Urban transportation system - methods of route assignment
Urban transportation system - methods of route assignment
Ā
Urban transport (MODAL SHIFT ANALYSIS)
Urban transport (MODAL SHIFT ANALYSIS)
Ā
Transporation model
Transporation model
Ā
4 estimating benefits-from_specific_highwa
4 estimating benefits-from_specific_highwa
Ā
Project on Traffics jams and Dell EMC CMR University with references
Project on Traffics jams and Dell EMC CMR University with references
Ā
Kate White 101 solutions-10-12-2015-NCST Brief-Induced_Travel
Kate White 101 solutions-10-12-2015-NCST Brief-Induced_Travel
Ā
Influence of tradable credits on travel demand and vehicle emissions
Influence of tradable credits on travel demand and vehicle emissions
Ā
Benchmarking TOD
Benchmarking TOD
Ā
Ieeepro techno solutions 2013 ieee embedded project - emergency management ...
Ieeepro techno solutions 2013 ieee embedded project - emergency management ...
Ā
The Driving Factors Behind Successful Carpool Formation and Use
The Driving Factors Behind Successful Carpool Formation and Use
Ā
Providing Transportation Choices: The Region of Durham Experience
Providing Transportation Choices: The Region of Durham Experience
Ā
Chapter 6 Fundamentals of traffic flow
Chapter 6 Fundamentals of traffic flow
Ā
Wang et al DRT Greater Manchester presentation TRB 2012
Wang et al DRT Greater Manchester presentation TRB 2012
Ā
Smart Commute Initiative: Establishment of a Multijurisdictional Workplace-ba...
Smart Commute Initiative: Establishment of a Multijurisdictional Workplace-ba...
Ā
Predictive modeling of travel time
Predictive modeling of travel time
Ā
Viewers also liked
De juegos, sueƱos y esperanza. cuento de felipe
De juegos, sueƱos y esperanza. cuento de felipe
ada48salamanca
Ā
17 September 2012
17 September 2012
renabivens
Ā
Portafolio
Portafolio
Shirley Verdesoto
Ā
Sparta
Sparta
ssclasstorremar
Ā
8 egyptian geography
8 egyptian geography
ssclasstorremar
Ā
OpenREDBAG: accediendo a informaciĆ³n sobre la flora amenazada y protegida que...
OpenREDBAG: accediendo a informaciĆ³n sobre la flora amenazada y protegida que...
J. Ignacio Alonso Felpete
Ā
Building a mobile website
Building a mobile website
li_gordon
Ā
The other side of the truth 2
The other side of the truth 2
Lynne Weber
Ā
TUTELARE IL PATRIMONIO INFORMATIVO AZIENDALE GARANTENDO LA COMPLIANCE NORMATIVA
TUTELARE IL PATRIMONIO INFORMATIVO AZIENDALE GARANTENDO LA COMPLIANCE NORMATIVA
Polaris informatica
Ā
Content Hub "Robotik im Pflegesektor"
Content Hub "Robotik im Pflegesektor"
Maisberger2012
Ā
Fortluz 2012
Fortluz 2012
mapple2012
Ā
1 2 populating the world
1 2 populating the world
ssclasstorremar
Ā
De juegos, sueƱos y esperanza. cuento de felipe
De juegos, sueƱos y esperanza. cuento de felipe
ada48salamanca
Ā
INTERNET I EINES 2.0 PER FACILITAR LA TASCA DE COMANDAMENT SessiĆ³ 2
INTERNET I EINES 2.0 PER FACILITAR LA TASCA DE COMANDAMENT SessiĆ³ 2
Neus Burch SuƱer
Ā
personality-development-notes
personality-development-notes
Ankit Chauhan
Ā
Studio Output Insight Report
Studio Output Insight Report
JAdkin
Ā
Osram auto2012
Osram auto2012
mapple2012
Ā
47. Ų§ŁŁŲµŁŲ© Ų§ŁŲ®Ų§Ł Ų³Ų© Ų³ŁŲ³ŁŁ Ų¹ŲøŲ§ŲŖ Ų§ŁŁŲµŲ§ŁŲ§ Ų§ŁŲ¹Ų“Ų± Ų§ŁŁŲ³ ŁŲ±Ł ŁŲ§Ł Ų¹Ł ŲµŲØŲ§Ų Ų§ŁŲ£Ų...
47. Ų§ŁŁŲµŁŲ© Ų§ŁŲ®Ų§Ł Ų³Ų© Ų³ŁŲ³ŁŁ Ų¹ŲøŲ§ŲŖ Ų§ŁŁŲµŲ§ŁŲ§ Ų§ŁŲ¹Ų“Ų± Ų§ŁŁŲ³ ŁŲ±Ł ŁŲ§Ł Ų¹Ł ŲµŲØŲ§Ų Ų§ŁŲ£Ų...
Ibrahimia Church Ftriends
Ā
Tanclick tampas 2012
Tanclick tampas 2012
mapple2012
Ā
Study session2012#0-1
Study session2012#0-1
petrof1991
Ā
Viewers also liked
(20)
De juegos, sueƱos y esperanza. cuento de felipe
De juegos, sueƱos y esperanza. cuento de felipe
Ā
17 September 2012
17 September 2012
Ā
Portafolio
Portafolio
Ā
Sparta
Sparta
Ā
8 egyptian geography
8 egyptian geography
Ā
OpenREDBAG: accediendo a informaciĆ³n sobre la flora amenazada y protegida que...
OpenREDBAG: accediendo a informaciĆ³n sobre la flora amenazada y protegida que...
Ā
Building a mobile website
Building a mobile website
Ā
The other side of the truth 2
The other side of the truth 2
Ā
TUTELARE IL PATRIMONIO INFORMATIVO AZIENDALE GARANTENDO LA COMPLIANCE NORMATIVA
TUTELARE IL PATRIMONIO INFORMATIVO AZIENDALE GARANTENDO LA COMPLIANCE NORMATIVA
Ā
Content Hub "Robotik im Pflegesektor"
Content Hub "Robotik im Pflegesektor"
Ā
Fortluz 2012
Fortluz 2012
Ā
1 2 populating the world
1 2 populating the world
Ā
De juegos, sueƱos y esperanza. cuento de felipe
De juegos, sueƱos y esperanza. cuento de felipe
Ā
INTERNET I EINES 2.0 PER FACILITAR LA TASCA DE COMANDAMENT SessiĆ³ 2
INTERNET I EINES 2.0 PER FACILITAR LA TASCA DE COMANDAMENT SessiĆ³ 2
Ā
personality-development-notes
personality-development-notes
Ā
Studio Output Insight Report
Studio Output Insight Report
Ā
Osram auto2012
Osram auto2012
Ā
47. Ų§ŁŁŲµŁŲ© Ų§ŁŲ®Ų§Ł Ų³Ų© Ų³ŁŲ³ŁŁ Ų¹ŲøŲ§ŲŖ Ų§ŁŁŲµŲ§ŁŲ§ Ų§ŁŲ¹Ų“Ų± Ų§ŁŁŲ³ ŁŲ±Ł ŁŲ§Ł Ų¹Ł ŲµŲØŲ§Ų Ų§ŁŲ£Ų...
47. Ų§ŁŁŲµŁŲ© Ų§ŁŲ®Ų§Ł Ų³Ų© Ų³ŁŲ³ŁŁ Ų¹ŲøŲ§ŲŖ Ų§ŁŁŲµŲ§ŁŲ§ Ų§ŁŲ¹Ų“Ų± Ų§ŁŁŲ³ ŁŲ±Ł ŁŲ§Ł Ų¹Ł ŲµŲØŲ§Ų Ų§ŁŲ£Ų...
Ā
Tanclick tampas 2012
Tanclick tampas 2012
Ā
Study session2012#0-1
Study session2012#0-1
Ā
Similar to Irregularities in Traffic Forecasts
International Refereed Journal of Engineering and Science (IRJES)
International Refereed Journal of Engineering and Science (IRJES)
irjes
Ā
capitulo 8
capitulo 8
Carlos Correa Alvarez
Ā
A New Paradigm in User Equilibrium-Application in Managed Lane Pricing
A New Paradigm in User Equilibrium-Application in Managed Lane Pricing
CSCJournals
Ā
An Analysis Of Spatial Equity Concerning Investments In High-Speed Rail Syste...
An Analysis Of Spatial Equity Concerning Investments In High-Speed Rail Syste...
Lindsey Sais
Ā
Ewing_Cervero_JAPA_2010_Travel+BE_MetaAnalysis.pdf
Ewing_Cervero_JAPA_2010_Travel+BE_MetaAnalysis.pdf
ChetanDoddamani8
Ā
travel and the built environment- a meta-analysis (2).pdf
travel and the built environment- a meta-analysis (2).pdf
ChetanDoddamani8
Ā
Mastersresearch 06-02-16
Mastersresearch 06-02-16
Matthias Hess
Ā
The International Journal of Engineering and Science (The IJES)
The International Journal of Engineering and Science (The IJES)
theijes
Ā
Drivers influencing the transport costs Aniello Esposito
Drivers influencing the transport costs Aniello Esposito
Aniello Esposito
Ā
THE INFLUENCE OF LAND USE AND TRAFFIC FLOW TO THE PERFORMANCE OF THE ROAD C...
THE INFLUENCE OF LAND USE AND TRAFFIC FLOW TO THE PERFORMANCE OF THE ROAD C...
IAEME Publication
Ā
A Tale of Two Forecasts
A Tale of Two Forecasts
David Hyder, PE, CPM
Ā
UrbanSim Overview - Administrator.pdf
UrbanSim Overview - Administrator.pdf
ssuserc3cd74
Ā
capitulos 4
capitulos 4
Carlos Correa Alvarez
Ā
wang2009.pdf
wang2009.pdf
FlavioVilcapinto1
Ā
CBI Paper for ISEHP 2016
CBI Paper for ISEHP 2016
David K. Hale, Ph.D.
Ā
Traffic Stream Relationships of Two-Lane Highways: A Case of Akure-Ondo Road ...
Traffic Stream Relationships of Two-Lane Highways: A Case of Akure-Ondo Road ...
IJAEMSJORNAL
Ā
SPS-21-MCE-00024 (SLIDE SHOW).pdf
SPS-21-MCE-00024 (SLIDE SHOW).pdf
engrsalis09
Ā
Intelligent Transportation System Based Traffic Congestion Modeling for Urban...
Intelligent Transportation System Based Traffic Congestion Modeling for Urban...
civejjour
Ā
INTELLIGENT TRANSPORTATION SYSTEM BASED TRAFFIC CONGESTION MODELLING FOR URBA...
INTELLIGENT TRANSPORTATION SYSTEM BASED TRAFFIC CONGESTION MODELLING FOR URBA...
civej
Ā
A Computational Study Of Traffic Assignment Algorithms
A Computational Study Of Traffic Assignment Algorithms
Nicole Adams
Ā
Similar to Irregularities in Traffic Forecasts
(20)
International Refereed Journal of Engineering and Science (IRJES)
International Refereed Journal of Engineering and Science (IRJES)
Ā
capitulo 8
capitulo 8
Ā
A New Paradigm in User Equilibrium-Application in Managed Lane Pricing
A New Paradigm in User Equilibrium-Application in Managed Lane Pricing
Ā
An Analysis Of Spatial Equity Concerning Investments In High-Speed Rail Syste...
An Analysis Of Spatial Equity Concerning Investments In High-Speed Rail Syste...
Ā
Ewing_Cervero_JAPA_2010_Travel+BE_MetaAnalysis.pdf
Ewing_Cervero_JAPA_2010_Travel+BE_MetaAnalysis.pdf
Ā
travel and the built environment- a meta-analysis (2).pdf
travel and the built environment- a meta-analysis (2).pdf
Ā
Mastersresearch 06-02-16
Mastersresearch 06-02-16
Ā
The International Journal of Engineering and Science (The IJES)
The International Journal of Engineering and Science (The IJES)
Ā
Drivers influencing the transport costs Aniello Esposito
Drivers influencing the transport costs Aniello Esposito
Ā
THE INFLUENCE OF LAND USE AND TRAFFIC FLOW TO THE PERFORMANCE OF THE ROAD C...
THE INFLUENCE OF LAND USE AND TRAFFIC FLOW TO THE PERFORMANCE OF THE ROAD C...
Ā
A Tale of Two Forecasts
A Tale of Two Forecasts
Ā
UrbanSim Overview - Administrator.pdf
UrbanSim Overview - Administrator.pdf
Ā
capitulos 4
capitulos 4
Ā
wang2009.pdf
wang2009.pdf
Ā
CBI Paper for ISEHP 2016
CBI Paper for ISEHP 2016
Ā
Traffic Stream Relationships of Two-Lane Highways: A Case of Akure-Ondo Road ...
Traffic Stream Relationships of Two-Lane Highways: A Case of Akure-Ondo Road ...
Ā
SPS-21-MCE-00024 (SLIDE SHOW).pdf
SPS-21-MCE-00024 (SLIDE SHOW).pdf
Ā
Intelligent Transportation System Based Traffic Congestion Modeling for Urban...
Intelligent Transportation System Based Traffic Congestion Modeling for Urban...
Ā
INTELLIGENT TRANSPORTATION SYSTEM BASED TRAFFIC CONGESTION MODELLING FOR URBA...
INTELLIGENT TRANSPORTATION SYSTEM BASED TRAFFIC CONGESTION MODELLING FOR URBA...
Ā
A Computational Study Of Traffic Assignment Algorithms
A Computational Study Of Traffic Assignment Algorithms
Ā
More from Basil Psarianos
3-D Sight Distance Assessment in Road Design
3-D Sight Distance Assessment in Road Design
Basil Psarianos
Ā
Driver's Attitudes toward Speed Limits
Driver's Attitudes toward Speed Limits
Basil Psarianos
Ā
Road safety impact assessment irf psarianos 2011
Road safety impact assessment irf psarianos 2011
Basil Psarianos
Ā
The non geodetic surveying professional activities
The non geodetic surveying professional activities
Basil Psarianos
Ā
Speed limits rss2007 psarianos et al
Speed limits rss2007 psarianos et al
Basil Psarianos
Ā
Traffic Forecasting Irregularities
Traffic Forecasting Irregularities
Basil Psarianos
Ā
Determination of real vehicle paths along curves (In Greek with English Abstr...
Determination of real vehicle paths along curves (In Greek with English Abstr...
Basil Psarianos
Ā
Road safety inspection (rsi)
Road safety inspection (rsi)
Basil Psarianos
Ā
More from Basil Psarianos
(8)
3-D Sight Distance Assessment in Road Design
3-D Sight Distance Assessment in Road Design
Ā
Driver's Attitudes toward Speed Limits
Driver's Attitudes toward Speed Limits
Ā
Road safety impact assessment irf psarianos 2011
Road safety impact assessment irf psarianos 2011
Ā
The non geodetic surveying professional activities
The non geodetic surveying professional activities
Ā
Speed limits rss2007 psarianos et al
Speed limits rss2007 psarianos et al
Ā
Traffic Forecasting Irregularities
Traffic Forecasting Irregularities
Ā
Determination of real vehicle paths along curves (In Greek with English Abstr...
Determination of real vehicle paths along curves (In Greek with English Abstr...
Ā
Road safety inspection (rsi)
Road safety inspection (rsi)
Ā
Recently uploaded
ęę ·åēä¼Æęēæ°å¤§å¦å¦é¢ęÆäøčÆļ¼BirminghamęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
ęę ·åēä¼Æęēæ°å¤§å¦å¦é¢ęÆäøčÆļ¼BirminghamęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
eeanqy
Ā
Minimalist Orange Portfolio by Slidesgo.pptx
Minimalist Orange Portfolio by Slidesgo.pptx
balqisyamutia
Ā
Just Call Vip call girls Kasganj Escorts āļø8617370543 Two shot with one girl ...
Just Call Vip call girls Kasganj Escorts āļø8617370543 Two shot with one girl ...
Nitya salvi
Ā
How to Turn a Picture Into a Line Drawing in Photoshop
How to Turn a Picture Into a Line Drawing in Photoshop
Zenith Clipping
Ā
Q4-Trends-Networks-Module-3.pdfqquater days sheets123456789
Q4-Trends-Networks-Module-3.pdfqquater days sheets123456789
CristineGraceAcuyan
Ā
ęę ·åē伦ę¦å½ēå¦é¢ęÆäøčÆļ¼KCLęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
ęę ·åē伦ę¦å½ēå¦é¢ęÆäøčÆļ¼KCLęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
eeanqy
Ā
Madhyamgram \ (Genuine) Escort Service Kolkata | Service-oriented sexy call g...
Madhyamgram \ (Genuine) Escort Service Kolkata | Service-oriented sexy call g...
HyderabadDolls
Ā
Furniture & Joinery Details_Designs.pptx
Furniture & Joinery Details_Designs.pptx
Nikhil Raut
Ā
Gamestore case study UI UX by Amgad Ibrahim
Gamestore case study UI UX by Amgad Ibrahim
amgadibrahim92
Ā
Top profile Call Girls In Mau [ 7014168258 ] Call Me For Genuine Models We ar...
Top profile Call Girls In Mau [ 7014168258 ] Call Me For Genuine Models We ar...
nirzagarg
Ā
poliovirus-190801072449. pptx
poliovirus-190801072449. pptx
ssuser0ad194
Ā
High Profile Escorts Nerul WhatsApp +91-9930687706, Best Service
High Profile Escorts Nerul WhatsApp +91-9930687706, Best Service
meghakumariji156
Ā
Top profile Call Girls In Meerut [ 7014168258 ] Call Me For Genuine Models We...
Top profile Call Girls In Meerut [ 7014168258 ] Call Me For Genuine Models We...
gajnagarg
Ā
How to Create a Productive Workspace Trends and Tips.pdf
How to Create a Productive Workspace Trends and Tips.pdf
Office Furniture Plus - Irving
Ā
ęę ·åēč«ēŗ³ä»å¤§å¦ęÆäøčÆļ¼MonashęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
ęę ·åēč«ēŗ³ä»å¤§å¦ęÆäøčÆļ¼MonashęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
ehyxf
Ā
ab-initio-training basics and architecture
ab-initio-training basics and architecture
saipriyacoool
Ā
Pondicherry Escorts Service Girl ^ 9332606886, WhatsApp Anytime Pondicherry
Pondicherry Escorts Service Girl ^ 9332606886, WhatsApp Anytime Pondicherry
meghakumariji156
Ā
Eye-Catching Web Design Crafting User Interfaces .docx
Eye-Catching Web Design Crafting User Interfaces .docx
MdBokhtiyarHossainNi
Ā
NO1 Top Pakistani Amil Baba Real Amil baba In Pakistan Najoomi Baba in Pakist...
NO1 Top Pakistani Amil Baba Real Amil baba In Pakistan Najoomi Baba in Pakist...
Amil baba
Ā
äøęÆäøå®(č“)å”å°é”æ大å¦ęÆäøčÆ(CUęÆäøčÆ)ęē»©åå¦ä½čÆ
äøęÆäøå®(č“)å”å°é”æ大å¦ęÆäøčÆ(CUęÆäøčÆ)ęē»©åå¦ä½čÆ
wpkuukw
Ā
Recently uploaded
(20)
ęę ·åēä¼Æęēæ°å¤§å¦å¦é¢ęÆäøčÆļ¼BirminghamęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
ęę ·åēä¼Æęēæ°å¤§å¦å¦é¢ęÆäøčÆļ¼BirminghamęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
Ā
Minimalist Orange Portfolio by Slidesgo.pptx
Minimalist Orange Portfolio by Slidesgo.pptx
Ā
Just Call Vip call girls Kasganj Escorts āļø8617370543 Two shot with one girl ...
Just Call Vip call girls Kasganj Escorts āļø8617370543 Two shot with one girl ...
Ā
How to Turn a Picture Into a Line Drawing in Photoshop
How to Turn a Picture Into a Line Drawing in Photoshop
Ā
Q4-Trends-Networks-Module-3.pdfqquater days sheets123456789
Q4-Trends-Networks-Module-3.pdfqquater days sheets123456789
Ā
ęę ·åē伦ę¦å½ēå¦é¢ęÆäøčÆļ¼KCLęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
ęę ·åē伦ę¦å½ēå¦é¢ęÆäøčÆļ¼KCLęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
Ā
Madhyamgram \ (Genuine) Escort Service Kolkata | Service-oriented sexy call g...
Madhyamgram \ (Genuine) Escort Service Kolkata | Service-oriented sexy call g...
Ā
Furniture & Joinery Details_Designs.pptx
Furniture & Joinery Details_Designs.pptx
Ā
Gamestore case study UI UX by Amgad Ibrahim
Gamestore case study UI UX by Amgad Ibrahim
Ā
Top profile Call Girls In Mau [ 7014168258 ] Call Me For Genuine Models We ar...
Top profile Call Girls In Mau [ 7014168258 ] Call Me For Genuine Models We ar...
Ā
poliovirus-190801072449. pptx
poliovirus-190801072449. pptx
Ā
High Profile Escorts Nerul WhatsApp +91-9930687706, Best Service
High Profile Escorts Nerul WhatsApp +91-9930687706, Best Service
Ā
Top profile Call Girls In Meerut [ 7014168258 ] Call Me For Genuine Models We...
Top profile Call Girls In Meerut [ 7014168258 ] Call Me For Genuine Models We...
Ā
How to Create a Productive Workspace Trends and Tips.pdf
How to Create a Productive Workspace Trends and Tips.pdf
Ā
ęę ·åēč«ēŗ³ä»å¤§å¦ęÆäøčÆļ¼MonashęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
ęę ·åēč«ēŗ³ä»å¤§å¦ęÆäøčÆļ¼MonashęÆäøčÆ书ļ¼ęē»©åēäæ”认čÆ
Ā
ab-initio-training basics and architecture
ab-initio-training basics and architecture
Ā
Pondicherry Escorts Service Girl ^ 9332606886, WhatsApp Anytime Pondicherry
Pondicherry Escorts Service Girl ^ 9332606886, WhatsApp Anytime Pondicherry
Ā
Eye-Catching Web Design Crafting User Interfaces .docx
Eye-Catching Web Design Crafting User Interfaces .docx
Ā
NO1 Top Pakistani Amil Baba Real Amil baba In Pakistan Najoomi Baba in Pakist...
NO1 Top Pakistani Amil Baba Real Amil baba In Pakistan Najoomi Baba in Pakist...
Ā
äøęÆäøå®(č“)å”å°é”æ大å¦ęÆäøčÆ(CUęÆäøčÆ)ęē»©åå¦ä½čÆ
äøęÆäøå®(č“)å”å°é”æ大å¦ęÆäøčÆ(CUęÆäøčÆ)ęē»©åå¦ä½čÆ
Ā
Irregularities in Traffic Forecasts
1.
Ā
PaperĀ submittedĀ forĀ theĀ ProceedingsĀ ofĀ theĀ 2ndĀ InternationalĀ SymposiumĀ onĀ FreewayĀ andĀ TollwayĀ OperationsĀ Honolulu,Ā HawaiiĀ āĀ JuneĀ 21ā24,Ā 2009Ā Ā Ā IrregularitiesĀ inĀ theĀ outputĀ ofĀ transportĀ planningĀ modelsāĀ forecastsĀ forĀ capitalĀ infrastructureĀ planningĀ decisionsĀ Ā C.Ā Antoniou1,Ā B.Ā Psarianos1,Ā andĀ W.Ā Brilon2Ā Ā AbstractĀ Ā InĀ thisĀ paper,Ā evidenceĀ fromĀ theĀ literatureĀ onĀ theĀ inaccuracyĀ ofĀ forecastsĀ fromĀ transportĀ planningĀ modelsĀ isĀ presentedĀ andĀ itsĀ impactĀ onĀ capitalĀ infrastructureĀ planningĀ decisionāmakingĀ isĀ demonstrated.Ā EmpiricalĀ evidenceĀ suggestsĀ thatĀ forecastsĀ usedĀ forĀ majorĀ planningĀ decisionsĀ internationallyĀ haveĀ beenĀ foundĀ toĀ beĀ ratherĀ inaccurateĀ (whenĀ comparingĀ forecastĀ flowsĀ withĀ actuallyĀ realizedĀ flowsĀ afterĀ timeĀ passed).Ā EvidenceĀ ofĀ theseĀ irregularitiesĀ inĀ theĀ caseĀ ofĀ aĀ majorĀ expresswayĀ infrastructureĀ projectĀ inĀ SouthernĀ GreeceĀ isĀ presented,Ā providingĀ aĀ typicalĀ exampleĀ ofĀ aĀ countryĀ withĀ anĀ inadequateĀ freewayĀ network.Ā DataĀ fromĀ theĀ immediateĀ impactĀ zoneĀ ofĀ theĀ AttikiĀ OdosĀ tollwayĀ inĀ theĀ metropolitanĀ areaĀ ofĀ AthensĀ areĀ usedĀ toĀ demonstrateĀ thatĀ theĀ projectĀ resultedĀ inĀ aĀ considerableĀ changeĀ inĀ theĀ landĀ useĀ patternsĀ andĀ density,Ā resultingĀ inĀ theĀ generationĀ ofĀ additionalĀ trafficĀ flows.Ā HavingĀ demonstratedĀ theĀ needĀ forĀ reāthinkingĀ howĀ longā termĀ trafficĀ isĀ forecast,Ā suitableĀ recommendationsĀ forĀ promisingĀ directionsĀ areĀ made.Ā DealingĀ withĀ uncertaintyĀ isĀ oneĀ keyĀ aspectĀ thatĀ canĀ beĀ easilyĀ incorporatedĀ toĀ existingĀ forecastingĀ tools.Ā Furthermore,Ā theĀ needĀ forĀ moreĀ detailedĀ andĀ areaā specificĀ models,Ā e.g.Ā throughĀ theĀ integrationĀ ofĀ activityābasedĀ modeling,Ā specificĀ mobilityĀ patternsĀ andĀ demandsĀ etc.Ā areĀ alsoĀ outlined.Ā Ā 1.Ā IntroductionĀ TransportationĀ planningĀ andĀ forecastingĀ modelsĀ areĀ usedĀ asĀ theĀ basisĀ forĀ capitalĀ infrastructureĀ decisions.Ā QuiteĀ often,Ā however,Ā theĀ resultsĀ ofĀ theseĀ modelsĀ showĀ considerableĀ irregularities,Ā whenĀ comparedĀ withĀ theĀ actualĀ trafficĀ observedĀ whenĀ theĀ forecastĀ horizonĀ hasĀ passed.Ā ThisĀ doesĀ notĀ implyĀ thatĀ theĀ modelsĀ orĀ theĀ modelersĀ underperformed,Ā butĀ ratherĀ thatĀ thereĀ areĀ someĀ inherentĀ difficultiesĀ thatĀ mayĀ notĀ beĀ alwaysĀ takenĀ intoĀ account.Ā TheĀ objectiveĀ ofĀ thisĀ paperĀ isĀ toĀ provideĀ someĀ insightĀ intoĀ theseĀ difficulties,Ā throughĀ aĀ reviewĀ ofĀ relatedĀ literature,Ā andĀ thenĀ attemptĀ toĀ quantifyĀ theĀ impactĀ ofĀ oneĀ suchĀ factorĀ (theĀ landā useĀ āĀ transportĀ interaction)Ā throughĀ anĀ applicationĀ inĀ theĀ AttikiĀ OdosĀ motorwayĀ inĀ theĀ Athens,Ā Greece,Ā area.Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 1Ā LaboratoryĀ ofĀ TransportationĀ Engineering,Ā NationalĀ TechnicalĀ UniversityĀ ofĀ Athens,Ā 9Ā HeroonĀ Polytechniou,Ā GRā15780Ā Athens,Ā GreeceĀ Tel:Ā +30Ā 210Ā 7722783,Ā fax:Ā +30Ā 210Ā 7722629,Ā email:Ā antoniou@central.ntua.grĀ (C.Ā Antoniou)Ā Ā Tel:Ā +30Ā 210Ā 7722628,Ā fax:Ā +30Ā 210Ā 7722629,Ā email:Ā bpsarian@mail.ntua.grĀ (B.Ā Psarianos)Ā Ā 2Ā LehrstuhlĀ fĆ¼rĀ Verkehrswesen,Ā RuhrāUniversitƤtĀ Bochum,Ā DĀ āĀ 44780Ā Bochum,Ā GermanyĀ Tel.Ā +49Ā (0)234Ā 322Ā 5936,Ā Fax:Ā +Ā 49Ā (0)234Ā 32Ā 14Ā 151,Ā eĀmail:Ā verkehrswesen@rub.deĀ page. 1
2.
Ā Ā AccordingĀ toĀ RodierĀ
(2004),Ā itĀ isĀ widelyĀ acknowledgedĀ thatĀ forecastsĀ producedĀ byĀ travelĀ andĀ emissionĀ modelsĀ areĀ typicallyĀ inaccurate;Ā itĀ isĀ notĀ uncommonĀ toĀ findĀ largeĀ differencesĀ betweenĀ predictedĀ andĀ actualĀ outcomes.Ā SomeĀ transportationĀ professionalsĀ believeĀ thatĀ currentĀ stateāofātheāartĀ methodsĀ canĀ forecastĀ emissionsĀ withĀ anĀ accuracyĀ ofĀ plusĀ orĀ minusĀ 15Ā percentĀ toĀ 30Ā percentĀ (ChatterjeeĀ etĀ al,Ā 1997).Ā RodierĀ (2004)Ā alsoĀ concludesĀ thatĀ recentĀ evidenceĀ forĀ theĀ inducedĀ travelĀ hypothesisĀ hasĀ increasedĀ concernsĀ overĀ theĀ limitedĀ abilityĀ ofĀ mostĀ regionalĀ travelĀ demandĀ modelsĀ toĀ representĀ howĀ anĀ increaseĀ inĀ roadwayĀ supplyĀ reducesĀ theĀ timeĀ costĀ ofĀ travelĀ and,Ā toĀ theĀ extentĀ thatĀ demandĀ isĀ elastic,Ā increasesĀ theĀ quantityĀ ofĀ travelĀ demanded.Ā Ā Ā ParthasarathiĀ andĀ LevinsonĀ (2009)Ā noteĀ thatĀ whileĀ researchĀ effortsĀ haveĀ focusedĀ onĀ improvingĀ theĀ technicalĀ aspectsĀ ofĀ aĀ typicalĀ fourāstepĀ transportationĀ planningĀ model,Ā fewĀ studiesĀ haveĀ evaluatedĀ theĀ modelĀ accuracyĀ byĀ comparingĀ forecastsĀ toĀ actualĀ trafficĀ counts.Ā TheĀ analysisĀ indicatedĀ thatĀ trafficĀ forecastsĀ onĀ 61.5%Ā ofĀ theĀ linksĀ wereĀ underestimatedĀ comparedĀ toĀ theĀ actualĀ trafficĀ countsĀ andĀ theĀ forecastsĀ wereĀ moreĀ accurateĀ forĀ higherĀ volumeĀ roadways.Ā ParthasarathiĀ andĀ LevinsonĀ (2009)Ā alsoĀ evaluateĀ theĀ accuracyĀ ofĀ demandĀ forecastsĀ usingĀ aĀ sampleĀ ofĀ recentlyĀ completedĀ projectsĀ inĀ MinnesotaĀ (withĀ aĀ horizonĀ forecastĀ yearĀ ofĀ 2010Ā orĀ earlier)Ā andĀ identifyĀ theĀ factorsĀ influencingĀ theĀ inaccuracyĀ inĀ forecasts.Ā TheĀ analysisĀ indicatesĀ aĀ generalĀ trendĀ ofĀ underestimationĀ inĀ roadwayĀ trafficĀ forecastsĀ withĀ factorsĀ suchĀ asĀ highwayĀ typeĀ andĀ functionalĀ classificationĀ playingĀ anĀ influencingĀ role.Ā RoadwaysĀ withĀ higherĀ volumesĀ andĀ higherĀ functionalĀ classificationsĀ suchĀ asĀ freewaysĀ areĀ subjectĀ toĀ moreĀ severeĀ underestimationĀ comparedĀ toĀ lowerĀ volumeĀ roadways/functionalĀ classifications.Ā Ā AnĀ explanationĀ forĀ theĀ underestimationĀ seenĀ inĀ forecasts,Ā specificallyĀ roadĀ forecasts,Ā canĀ beĀ attributedĀ toĀ theĀ nonĀincorporationĀ ofĀ inducedĀ trafficĀ intoĀ theĀ modelĀ forecastingĀ procedureĀ (Noland,Ā 2001).Ā TheĀ theoryĀ ofĀ inducedĀ demandĀ statesĀ thatĀ increasesĀ inĀ highwayĀ capacityĀ inducesĀ additionalĀ growthĀ inĀ trafficĀ resultingĀ inĀ increasedĀ levelsĀ ofĀ vehicleĀ traffic.Ā FromĀ anĀ economicĀ perspective,Ā theĀ travelĀ demandĀ increasesĀ asĀ theĀ costĀ ofĀ travelĀ decreasesĀ dueĀ toĀ capacityĀ improvementsĀ resultingĀ inĀ anĀ elasticityĀ ofĀ demandĀ associatedĀ withĀ travelĀ (NolandĀ andĀ Lem,Ā 2000).Ā Ā Ā FlyvbergĀ etĀ al.Ā (2006)Ā presentĀ resultsĀ fromĀ aĀ largeāscaleĀ studyĀ ofĀ trafficĀ forecastsĀ inĀ transportationĀ infrastructureĀ projects,Ā usingĀ aĀ sampleĀ coveringĀ 210Ā projectsĀ inĀ 14Ā nationsĀ worthĀ US$58Ā billion.Ā TheĀ studyĀ showsĀ thatĀ forecastersĀ generallyĀ doĀ aĀ poorĀ jobĀ ofĀ estimatingĀ theĀ demandĀ forĀ transportationĀ infrastructureĀ projects.Ā ForĀ 72%Ā ofĀ railĀ projects,Ā forecastsĀ areĀ overestimatedĀ byĀ moreĀ thanĀ twoāthirds.Ā ForĀ 50%Ā ofĀ roadĀ projects,Ā theĀ differenceĀ betweenĀ actualĀ andĀ forecastedĀ trafficĀ isĀ moreĀ thanĀ Ā±20%;Ā forĀ 25%Ā ofĀ roadĀ projects,Ā theĀ differenceĀ isĀ largerĀ thanĀ Ā±40%.Ā Ā Ā Ā Ā page. 2
3.
2.Ā FactorsĀ affectingĀ inaccuracyĀ ofĀ transportationĀ forecastingĀ Ā SammerĀ (2006)Ā observesĀ
thatĀ whileĀ theĀ currentlyĀ availableĀ modellingĀ approachesĀ areĀ considerablyĀ moreĀ flexibleĀ andĀ powerfulĀ thanĀ thoseĀ ofĀ theĀ 1990s,Ā thereĀ isĀ considerableĀ evidenceĀ thatĀ theĀ gapĀ betweenĀ stateĀofĀtheĀartĀ theoryĀ andĀ practice,Ā i.e.Ā theĀ actualĀ modellingĀ ofĀ transport,Ā isĀ widening.Ā OneĀ ofĀ theĀ implicationsĀ ofĀ thisĀ observationĀ isĀ thatĀ trustĀ inĀ theĀ validityĀ ofĀ modellingĀ resultsĀ isĀ decreasingĀ significantly.Ā Concluding,Ā SammerĀ (2006)Ā summarizesĀ theĀ problemsĀ inĀ transportationĀ forecastingĀ as:Ā (i)Ā theĀ models,Ā andĀ especiallyĀ theĀ producedĀ forecasts,Ā sufferĀ fromĀ theĀ āblackĀboxĀ effectā,Ā asĀ theyĀ cannotĀ beĀ followedĀ throughĀ andĀ understood,Ā (ii)Ā manyĀ ofĀ theĀ modelsĀ areĀ noĀ longerĀ stateāofātheāart,Ā (iii)Ā thereĀ isĀ littleĀ orĀ noĀ evidenceĀ forĀ theĀ validityĀ ofĀ theĀ inputĀ dataĀ usedĀ orĀ howĀ theĀ modelĀ wasĀ calibrated,Ā andĀ (iv)Ā theĀ resultsĀ areĀ presentedĀ asĀ pointĀ estimates,Ā ratherĀ thanĀ intervalĀ estimatesĀ basedĀ onĀ aĀ probabilityĀ function,Ā withĀ confidenceĀ limitsĀ specified.Ā Ā Ā Ā TransportĀ modelsĀ areĀ (oftenĀ complex)Ā approximationsĀ ofĀ veryĀ complexĀ systems.Ā Therefore,Ā aĀ numberĀ ofĀ errorsĀ canĀ occurĀ whichĀ mayĀ haveĀ anĀ impactĀ onĀ theĀ accuracyĀ ofĀ theĀ forecastĀ resultsĀ (Sammer,Ā 2006):Ā ā¢ MeasurementĀ errors;Ā ā¢ RandomĀ errors;Ā ā¢ ForecastĀ errorsĀ dueĀ toĀ theĀ inputĀ dataĀ used;Ā ā¢ ComputationalĀ andĀ applicationĀ errors;Ā ā¢ ModelĀ specificationĀ errors;Ā ā¢ TransferabilityĀ errorsĀ (whenĀ attemptingĀ toĀ applyĀ aĀ modelĀ calibratedĀ inĀ oneĀ regionĀ toĀ another)Ā ā¢ AggregationĀ andĀ disaggregationĀ errors.Ā TheseĀ errorsĀ mayĀ eitherĀ resultĀ inĀ additiveĀ (orĀ evenĀ multiplicative)Ā effects,Ā orĀ cancelĀ outĀ (thusĀ hidingĀ potentiallyĀ importantĀ modelĀ shortcomings).Ā Ā Ā Ā Ā LitmanĀ (2005)Ā examinesĀ howĀ variousĀ landĀ useĀ factorsĀ suchĀ asĀ density,Ā regionalĀ accessibility,Ā mixĀ andĀ roadwayĀ connectivityĀ affectĀ travelĀ behaviour,Ā includingĀ perĀ capitaĀ vehicleĀ travel,Ā modeĀ splitĀ andĀ nonāmotorizedĀ travel.Ā LitmanĀ concludesĀ thatĀ landĀ useĀ factorsĀ canĀ haveĀ significantĀ impactsĀ onĀ travelĀ patterns,Ā butĀ thatĀ currentĀ transportationĀ modelsĀ areĀ notĀ accurateĀ atĀ predictingĀ theirĀ effects.Ā Ā Ā WegenerĀ andĀ FuerstĀ (1999)Ā indicateĀ thatĀ theĀ impactsĀ ofĀ transportĀ policiesĀ onĀ transportĀ patternsĀ areĀ clearerĀ andĀ strongerĀ comparedĀ toĀ theĀ interplayĀ ofĀ landĀ useĀ andĀ transport.Ā WhileĀ travelĀ costĀ andĀ travelĀ timeĀ haveĀ aĀ negativeĀ impactĀ onĀ bothĀ tripĀ lengthĀ andĀ tripĀ frequency,Ā accessibilityĀ hasĀ aĀ positiveĀ impactĀ onĀ tripĀ lengthĀ andĀ frequency.Ā ModeĀ choiceĀ isĀ dependentĀ uponĀ theĀ relativeĀ attractivenessĀ ofĀ aĀ modeĀ comparedĀ toĀ allĀ otherĀ modes.Ā TheĀ fastestĀ andĀ cheapestĀ modeĀ isĀ likelyĀ toĀ haveĀ theĀ highestĀ modalĀ share.Ā InĀ general,Ā theĀ theoreticalĀ considerationsĀ supportĀ theĀ conclusionĀ thatĀ theĀ impactĀ ofĀ 'pull'Ā measures,Ā i.e.Ā landĀ useĀ measures,Ā isĀ muchĀ weakerĀ thanĀ theĀ impactĀ ofĀ 'push'Ā measures,Ā i.e.Ā increasesĀ inĀ travelĀ time,Ā travelĀ costĀ etc.Ā Ā Ā page. 3
4.
3. An empirical
analysis of the changes in land-use and traffic patterns due to the Attiki Odos Motorway InĀ thisĀ section,Ā anĀ empiricalĀ analysisĀ ofĀ theĀ impactĀ ofĀ landāuseĀ intoĀ trafficĀ patternsĀ dueĀ toĀ theĀ AttikiĀ OdosĀ motorwayĀ inĀ theĀ AthensĀ areaĀ isĀ presented.Ā Ā 3.1.Ā MethodologyĀ forĀ onāsiteĀ surveysĀ forĀ dataācollectionĀ OneĀ ofĀ theĀ bigĀ challengesĀ associatedĀ withĀ modelingĀ andĀ otherĀ estimationĀ effortsĀ liesĀ inĀ theĀ originalĀ dataĀ input.Ā InĀ thisĀ case,Ā weĀ haveĀ reliedĀ inĀ aĀ wideĀ varietyĀ ofĀ sourcesĀ forĀ dataĀ collection.Ā InĀ theĀ coreĀ ofĀ thisĀ effort,Ā however,Ā isĀ aĀ setĀ ofĀ coordinatedĀ onĀsiteĀ surveys,Ā aimedĀ atĀ providingĀ firstāhand,Ā reliableĀ evidenceĀ forĀ theĀ groundātruthĀ situation.Ā TheseĀ onāsiteĀ surveysĀ areĀ basedĀ onĀ speciallyĀ designedĀ surveyĀ formsĀ andĀ wereĀ executedĀ byĀ experiencedĀ andĀ skilledĀ engineersĀ onĀ theĀ field.Ā Ā Ā TheĀ objectiveĀ ofĀ thisĀ effortĀ isĀ toĀ ultimatelyĀ obtainĀ reliableĀ estimatesĀ forĀ theĀ numberĀ ofĀ tripsĀ thatĀ areĀ beingĀ generatedĀ fromĀ secondālevelĀ inducedĀ traffic,Ā i.e.Ā additionalĀ tripsĀ generatedĀ byĀ extendedĀ landĀ useĀ changesĀ dueĀ toĀ improvedĀ accessibility.Ā InĀ thisĀ case,Ā theĀ scopeĀ ofĀ theĀ studyĀ isĀ primarilyĀ commuterĀ trafficĀ fromĀ aĀ stripĀ ofĀ landĀ aroundĀ aĀ majorĀ roadĀ infrastructureĀ project.Ā TheseĀ changesĀ areĀ arguablyĀ primarilyĀ dueĀ toĀ landĀ useĀ changesĀ andĀ subsequentĀ socioeconomicĀ changes,Ā resultingĀ directlyĀ fromĀ theĀ infrastructureĀ improvement.Ā MoreĀ buildingsĀ withĀ moreĀ apartmentsĀ resultĀ inĀ moreĀ householdsĀ thatĀ mayĀ makeĀ trips.Ā Furthermore,Ā changesĀ inĀ theĀ costĀ ofĀ landĀ mightĀ leadĀ toĀ theĀ attractionĀ ofĀ moreĀ affluentĀ householdsĀ thatĀ presumablyĀ haveĀ aĀ higherĀ carĀ ownershipĀ andĀ makeĀ moreĀ trips.Ā ItĀ isĀ expectedĀ thatĀ āassumingĀ aĀ reasonableĀ selectionĀ ofĀ theĀ stripĀ ofĀ landĀ underĀ studyāĀ theĀ vastĀ majorityĀ ofĀ theĀ tripsĀ willĀ beĀ absorbedĀ byĀ theĀ infrastructureĀ projectĀ underĀ study.Ā Ā TheĀ mainĀ stepsĀ ofĀ theĀ methodologyĀ areĀ presentedĀ next.Ā TheĀ firstĀ stepĀ wasĀ theĀ selectionĀ ofĀ aĀ suitableĀ projectĀ toĀ beĀ usedĀ forĀ theĀ analysis.Ā TheĀ criteriaĀ forĀ selectionĀ included:Ā ā¢ TimeĀ sinceĀ theĀ projectĀ wasĀ constructedĀ (aĀ moreĀ recentĀ projectĀ wouldĀ beĀ moreĀ advantageous,Ā asĀ theĀ impactĀ wouldĀ beĀ closerĀ toĀ theĀ presentĀ time)Ā ā¢ SizeĀ ofĀ theĀ project,Ā ideallyĀ aĀ largeāscaleĀ project.Ā Ā ItĀ quicklyĀ becameĀ apparentĀ thatĀ theĀ AttikiĀ OdosĀ motorwayĀ isĀ anĀ idealĀ candidateĀ forĀ thisĀ analysis,Ā asĀ itĀ isĀ aĀ largeāscaleĀ projectĀ thatĀ wasĀ completedĀ onlyĀ aĀ fewĀ yearsĀ ago.Ā Ā Ā OnceĀ theĀ projectĀ hasĀ beenĀ identified,Ā theĀ nextĀ stepĀ isĀ toĀ defineĀ theĀ analysisĀ area.Ā ConsideringĀ theĀ internationalĀ literatureĀ andĀ engineeringĀ judgmentĀ onĀ thisĀ topic,Ā aĀ stripĀ ofĀ landĀ extendingĀ 1.5kmĀ toĀ eachĀ ofĀ theĀ sidesĀ ofĀ theĀ projectĀ wasĀ selectedĀ (i.e.Ā aĀ 3kmĀ wideĀ strip).Ā Clearly,Ā theĀ impactĀ ofĀ suchĀ aĀ projectĀ inĀ shapingĀ commutingĀ behaviorĀ ofĀ neighboringĀ areasĀ extendsĀ wellĀ outsideĀ ofĀ thisĀ area,Ā butĀ thisĀ wasĀ selectedĀ asĀ aĀ conservativeĀ range.Ā Ā Ā Ā TheĀ nextĀ stepĀ isĀ toĀ segmentĀ theĀ studyĀ areaĀ intoĀ analysisĀ zonesĀ withĀ fairlyĀ uniformĀ characteristics.Ā TheĀ twoĀ mainĀ criteriaĀ forĀ thisĀ segmentationĀ are:Ā page. 4
5.
ā¢
BuildingĀ codeĀ regulationsĀ inĀ theĀ variousĀ municipalities.Ā ā¢ BuildingĀ densityĀ andĀ āsaturationā,Ā i.e.Ā whetherĀ theĀ areaĀ hasĀ reachedĀ aĀ stateĀ whereĀ undevelopedĀ landĀ isĀ scarceĀ andĀ theĀ onlyĀ wayĀ toĀ growĀ isĀ vertically,Ā orĀ whetherĀ thereĀ isĀ stillĀ roomĀ toĀ growĀ horizontally.Ā BasedĀ onĀ theĀ intersectionĀ ofĀ theĀ aboveĀ twoĀ classifications,Ā aĀ numberĀ ofĀ fairlyĀ homogeneousĀ analysisĀ zonesĀ isĀ developed,Ā forĀ whichĀ theĀ analysisĀ willĀ takeĀ place.Ā Ā TheĀ lastĀ requirementĀ forĀ theĀ performanceĀ ofĀ theĀ onāsiteĀ surveysĀ isĀ theĀ designĀ andĀ validationĀ ofĀ theĀ forms.Ā SuitableĀ formsĀ haveĀ beenĀ developed,Ā basedĀ onĀ theĀ internationalĀ literatureĀ andĀ theĀ experienceĀ ofĀ theĀ projectĀ team.Ā TheseĀ formsĀ wereĀ usedĀ byĀ skilledĀ andĀ experiencedĀ engineersĀ whoĀ recordedĀ theĀ requiredĀ dataĀ inĀ aĀ seriesĀ ofĀ fieldĀ visitsĀ inĀ theĀ coveredĀ areas.Ā TheĀ surveyingĀ engineersĀ collectedĀ dataĀ suchĀ asĀ theĀ numberĀ ofĀ buildingsĀ perĀ block,Ā theĀ numberĀ ofĀ floorsĀ perĀ buildingĀ andĀ theĀ numberĀ ofĀ apartmentsĀ (andĀ henceĀ households)Ā perĀ floor.Ā PriorĀ toĀ theĀ actualĀ onāsiteĀ surveys,Ā aĀ roundĀ ofĀ pilotĀ evaluationĀ tookĀ place,Ā whereĀ theĀ formsĀ wereĀ usedĀ forĀ surveyingĀ aĀ coupleĀ areas.Ā BasedĀ onĀ theĀ feedback,Ā minorĀ improvementsĀ wereĀ madeĀ toĀ theĀ forms,Ā resultingĀ toĀ theĀ finalĀ formsĀ thatĀ wereĀ usedĀ forĀ theĀ onā siteĀ surveys.Ā OneĀ suchĀ improvementĀ wasĀ theĀ additionĀ ofĀ anĀ areaĀ inĀ theĀ formĀ forĀ theĀ inclusionĀ ofĀ aĀ digitalĀ photoĀ ofĀ theĀ surveyedĀ area.Ā Ā Ā FollowingĀ theĀ completionĀ ofĀ theĀ onāsiteĀ surveys,Ā theĀ dataĀ wereĀ analyzed,Ā validated,Ā andĀ verified.Ā TheĀ processĀ includedĀ tabulationĀ ofĀ theĀ dataĀ inĀ appropriatelyĀ designedĀ tables,Ā andĀ analysisĀ usingĀ realityĀ checks.Ā Ā Ā TheĀ nextĀ step,Ā onceĀ allĀ theĀ dataĀ hasĀ beenĀ collected,Ā isĀ toĀ useĀ theĀ collectedĀ dataĀ fromĀ theĀ surveysĀ andĀ theĀ aerialĀ photographsĀ (e.g.Ā numberĀ ofĀ buildingsĀ perĀ analysisĀ zone)Ā toĀ observeĀ abruptĀ landāuseĀ changesĀ andĀ estimateĀ changesĀ inĀ theĀ numberĀ ofĀ households.Ā Ā Ā Ā Clearly,Ā thisĀ kindĀ ofĀ workĀ involvesĀ severalĀ assumptions.Ā TheĀ generalĀ directionĀ thatĀ wasĀ followedĀ wasĀ towardsĀ makingĀ conservativeĀ assumptionsĀ thatĀ wouldĀ leadĀ toĀ anĀ underestimationĀ ofĀ theĀ impactsĀ ofĀ theĀ newĀ infrastructure.Ā ThisĀ wouldĀ addĀ anĀ extraĀ layerĀ ofĀ confidenceĀ inĀ theĀ findings,Ā asĀ theĀ resultĀ ofĀ theĀ surveysĀ wouldĀ clearlyĀ underestimateĀ theĀ impacts.Ā ForĀ example,Ā inĀ theĀ computationĀ ofĀ theĀ changeĀ inĀ theĀ numberĀ ofĀ householdsĀ aroundĀ AttikiĀ OdosĀ betweenĀ theĀ yearsĀ 2000Ā andĀ 2008Ā (present),Ā twoĀ assumptionsĀ (leadingĀ toĀ clearĀ underestimation)Ā wereĀ made:Ā ā¢ ForĀ aĀ largeĀ partĀ ofĀ theĀ influenceĀ zoneĀ (moreĀ thanĀ half),Ā inĀ whichĀ theĀ changesĀ wereĀ notĀ dramatic,Ā theĀ numberĀ ofĀ householdsĀ wasĀ heldĀ constant.Ā ThisĀ includesĀ bothĀ wellĀ builtāupĀ areas,Ā suchĀ asĀ partsĀ ofĀ Marousi,Ā Vrilisia,Ā andĀ Halandri,Ā andĀ lessĀ developedĀ areasĀ (suchĀ asĀ partsĀ ofĀ Elefsina,Ā AspropirgosĀ andĀ Spata).Ā ā¢ ForĀ theĀ partsĀ ofĀ theĀ influenceĀ zoneĀ forĀ whichĀ theĀ changeĀ inĀ theĀ numberĀ ofĀ buildingsĀ betweenĀ 2000Ā andĀ 2008Ā wasĀ computed,Ā theĀ numberĀ ofĀ householdsĀ perĀ buildingĀ wasĀ assumedĀ toĀ beĀ constantĀ (forĀ theĀ computationĀ ofĀ theĀ changeĀ inĀ theĀ numberĀ ofĀ households).Ā Ā Ā page. 5
6.
3.2.Ā InfluenceĀ ofĀ AttikiĀ OdosĀ onĀ residentialĀ developmentĀ Ā Ā TheĀ surveyĀ focusedĀ onlyĀ onĀ aĀ subsetĀ ofĀ theĀ influenceĀ zone,Ā forĀ whichĀ theĀ impactĀ wasĀ moreĀ evident.Ā
TheĀ resultsĀ areĀ thenĀ aggregatedĀ withĀ theĀ countsĀ fromĀ theĀ remainderĀ ofĀ theĀ influenceĀ zone,Ā withĀ theĀ assumptionĀ thatĀ theseĀ otherĀ zonesĀ wereĀ largelyĀ saturatedĀ andĀ theĀ increaseĀ inĀ householdsĀ duringĀ thisĀ periodĀ hasĀ beenĀ zero.Ā Clearly,Ā thisĀ isĀ aĀ veryĀ conservativeĀ approach.Ā Ā Ā FigureĀ 1Ā outlinesĀ theĀ surveyĀ resultsĀ forĀ theĀ surveyedĀ zonesĀ aroundĀ theĀ AttikiĀ OdosĀ motorway.Ā AĀ closerĀ examinationĀ atĀ theseĀ changeĀ ratesĀ revealsĀ (orĀ ratherĀ supportsĀ empirically)Ā someĀ interestingĀ patterns.Ā ForĀ example,Ā areasĀ thatĀ wereĀ alreadyĀ wellĀbuiltĀupĀ priorĀ toĀ theĀ operationĀ ofĀ theĀ AttikiĀ OdosĀ motorway,Ā suchĀ asĀ Marousi,Ā HalandriĀ andĀ AgiaĀ Paraskevi,Ā showĀ moreĀ moderateĀ growthĀ ratesĀ (stillĀ aroundĀ orĀ evenĀ exceedingĀ 20%Ā annuallyĀ forĀ aĀ periodĀ ofĀ 8Ā consecutiveĀ years),Ā whileĀ areasĀ thatĀ wereĀ lessĀ developedĀ andĀ hadĀ moreĀ roomĀ forĀ growthĀ (e.g.Ā Elefsina,Ā AspropirgosĀ andĀ AnoĀ Liosia)Ā showĀ annualĀ growthĀ ratesĀ exceedingĀ 50%.Ā Ā Ā Ā Ā FigureĀ 1.Ā SurveyĀ resultsĀ forĀ zoneĀ influencedĀ byĀ AttikiĀ Odos.Ā NumberĀ ofĀ householdsĀ perĀ surveyĀ zoneĀ (top);Ā annualĀ changeĀ inĀ householdĀ numberĀ perĀ surveyedĀ zoneĀ (bottom).Ā Ā Ā page. 6
7.
UsingĀ householdĀ dataĀ (showingĀ theĀ exactĀ numberĀ ofĀ householdsĀ andĀ populationĀ perĀ buildingĀ block)Ā
fromĀ theĀ NationalĀ StatisticalĀ ServiceĀ ofĀ GreeceĀ (ESYE)Ā forĀ 2000,Ā theĀ numberĀ ofĀ householdsĀ inĀ theĀ influenceĀ zoneĀ inĀ 2000Ā wasĀ 83.802,Ā withĀ 30.222Ā ofĀ themĀ inĀ theĀ areasĀ thatĀ showedĀ furtherĀ growthĀ andĀ 53.850Ā inĀ theĀ areasĀ thatĀ wereĀ excludedĀ fromĀ theĀ surveyĀ (andĀ thereforeĀ conservativelyĀ assumedĀ thatĀ theĀ numberĀ ofĀ householdsĀ remainedĀ constant).Ā TheĀ numberĀ ofĀ householdsĀ inĀ theĀ surveyedĀ zones,Ā asĀ computedĀ forĀ theĀ 2008Ā situationĀ (usingĀ theĀ numberĀ ofĀ buildingsĀ fromĀ 2006),Ā wasĀ foundĀ toĀ beĀ equalĀ toĀ 87.458,Ā bringingĀ theĀ totalĀ numberĀ ofĀ householdsĀ forĀ theĀ entireĀ influenceĀ zoneĀ (ofĀ 1.5km)Ā forĀ 2008Ā (usingĀ dataĀ forĀ 2006Ā forĀ theĀ areasĀ thatĀ wereĀ notĀ explicitlyĀ surveyed3)Ā toĀ 141.038Ā households.Ā Therefore,Ā aĀ totalĀ increaseĀ ofĀ 68%Ā inĀ householdsĀ wasĀ recordedĀ overĀ aĀ periodĀ ofĀ 8Ā years,Ā whichĀ translatesĀ toĀ anĀ annualĀ increaseĀ inĀ householdsĀ equalĀ toĀ 8.5%Ā forĀ theĀ entireĀ influenceĀ zone.Ā Ā Ā 4. Findings Ā InĀ thisĀ paper,Ā aĀ synthesisĀ onĀ theĀ literatureĀ onĀ theĀ irregularitiesĀ inĀ theĀ outputĀ ofĀ transportĀ planningĀ modelsāĀ forecastsĀ forĀ capitalĀ infrastructureĀ planningĀ decisionsĀ isĀ presented,Ā alongĀ withĀ someĀ empiricalĀ evidenceĀ supportingĀ itĀ andĀ sheddingĀ someĀ lightĀ intoĀ it.Ā SeveralĀ directionsĀ canĀ beĀ outlinedĀ forĀ dealingĀ withĀ theseĀ limitations,Ā including:Ā ā¢ ActivityĀ basedĀ modeling:Ā whichĀ canĀ beĀ usedĀ toĀ improvedĀ forecastingĀ modelsĀ incrementallyĀ byĀ integratingĀ moreĀ landĀ useĀ factors,Ā suchĀ asĀ mix,Ā connectivityĀ andĀ design,Ā andĀ byĀ incorporatingĀ feedbackĀ loopsĀ betweenĀ stepsĀ toĀ recognizeĀ reciprocalĀ impactsĀ (Litman,Ā 2005).Ā ā¢ DealingĀ withĀ uncertainty:Ā severalĀ researchersĀ (e.g.Ā ZhaoĀ andĀ Kockelman,Ā 2002,Ā andĀ BeserĀ Hugosson,Ā 2004,Ā 2005)Ā studyĀ theĀ problemĀ ofĀ howĀ aĀ givenĀ transportĀ modelĀ cannotĀ onlyĀ produceĀ aĀ centralĀ estimateĀ ofĀ trafficĀ volumeĀ orĀ revenues,Ā butĀ alsoĀ uncertaintyĀ marginsĀ aroundĀ these.Ā ā¢ BridgingĀ theĀ gapĀ betweenĀ stateāofātheāartĀ andĀ stateāofātheāpractice:Ā SammerĀ (2006)Ā identifiesĀ severalĀ reasonsĀ forĀ this,Ā includingĀ theĀ demandĀ forĀ lowācostĀ solutions,Ā increasinglyĀ complexĀ (andĀ thereforeĀ increasinglyĀ obscure)Ā transportĀ modelingĀ software,Ā andĀ theĀ lackĀ ofĀ availableĀ qualityĀ standardsĀ andĀ procedures.Ā Ā Ā References Ā BeserĀ Hugosson,Ā M.:Ā QuantifyingĀ uncertaintiesĀ inĀ theĀ SAMPERSĀ longĀ distanceĀ forecastingĀ system.Ā PaperĀ presentedĀ atĀ theĀ WCTRĀ 2004,Ā IstanbulĀ (2004)Ā Ā Ā BeserĀ Hugosson,Ā M.:Ā QuantifyingĀ uncertaintiesĀ inĀ aĀ nationalĀ forecastingĀ model.Ā TransportationĀ ResearchĀ A.Ā 39A(6),Ā 531ā547Ā (2005)Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 3ThisĀ leadsĀ toĀ aĀ conservativeĀ underestimationĀ ofĀ theĀ householdsĀ forĀ theĀ presentĀ situation,Ā sinceĀ itĀ ignoresĀ theĀ extraĀ developmentĀ thatĀ tookĀ placeĀ inĀ theĀ lastĀ fewĀ yearsĀ (2006ā2008)Ā inĀ theseĀ areas.Ā page. 7
8.
Ā Chatterjee,Ā A.,Ā Miller,Ā T.Ā L.,Ā Philpot,Ā J.Ā W.,Ā Wholley,Ā T.Ā F.,Ā Guensler,Ā R.,Ā Hartgen,Ā D.,Ā Margiotta,Ā R.Ā A.,Ā
andĀ Stopher,Ā P.Ā R.,Ā ImprovingĀ TransportationĀ DataĀ forĀ MobileĀ SourceĀ EmissionĀ Estimates,Ā TransportationĀ ResearchĀ Board,Ā NationalĀ ResearchĀ Council,Ā NationalĀ CooperativeĀ HighwayĀ ResearchĀ ProgramĀ ReportĀ 394,Ā NationalĀ AcademyĀ Press,Ā 1997.Ā Ā Ā Flyvbjerg,Ā B.,Ā M.Ā K.Ā SkamrisĀ Holm,Ā andĀ S.Ā L.Ā BuhlĀ (2006).Ā InaccuracyĀ inĀ trafficĀ forecasts.Ā TransportĀ Reviews,Ā Vol.Ā 26,Ā No.Ā 1,Ā 1ā24,Ā JanuaryĀ 2006.Ā Ā Litman,Ā T.A.Ā LandĀ UseĀ ImpactsĀ onĀ Transport.Ā HowĀ LandĀ UseĀ FactorsĀ AffectĀ TravelĀ Behavior.Ā VictoriaĀ TransportĀ PolicyĀ Institute,Ā NovemberĀ 16,Ā 2005.Ā (availableĀ online:Ā http://www.dot.wisconsin.gov/localgov/docs/victoriaātransport.pdf)Ā Ā Ā Noland,Ā R.Ā (2001),Ā āRelationshipsĀ betweenĀ highwayĀ capacityĀ andĀ inducedĀ vehicleĀ travelā,Ā TransportationĀ ResearchĀ PartĀ AĀ ,Ā Vol.Ā 35,Ā Elsevier,Ā pp.Ā 47ā72.Ā Ā Ā Noland,Ā R.Ā andĀ Lem,Ā L.Ā (2000),Ā āInducedĀ travel:Ā AĀ reviewĀ ofĀ recentĀ literatureĀ andĀ theĀ implicationsĀ forĀ transportationĀ andĀ environmentalĀ policyā,Ā AppraisalĀ ofĀ RoadĀ TransportĀ Initiatives:Ā ProceedingsĀ ofĀ SeminarĀ DĀ HeldĀ atĀ theĀ EuropeanĀ TransportĀ Conference.Ā (www.cts.cv.ic.ac.uk/staff/wp2ānoland.pdf).Ā Ā Parthasarathi,Ā P.,Ā andĀ D.Ā Levinson.Ā (2009).Ā PostāConstructionĀ EvaluationĀ ofĀ ForecastĀ Accuracy.Ā FinalĀ ReportĀ Mn_DOT2009ā11,Ā MinnesotaĀ DepartmentĀ ofĀ Transportation,Ā FebruaryĀ 2009Ā .Ā Ā Rodier,Ā C.Ā J.Ā (2004).Ā VerifyingĀ theĀ accuracyĀ ofĀ regionalĀ modelsĀ usedĀ inĀ transportationĀ andĀ airĀ qualityĀ planning:Ā AĀ caseĀ studyĀ inĀ theĀ Sacramento,Ā California,Ā Region.Ā ProceedingsĀ ofĀ theĀ 83rdĀ AnnualĀ MeetingĀ ofĀ theĀ TransportationĀ ResearchĀ Board,Ā Washington,Ā D.C.,Ā January.Ā Ā Sammer,Ā G.Ā (2006).Ā TheĀ gapĀ betweenĀ theoryĀ andĀ applicationĀ whenĀ modellingĀ transportĀ āĀ TheĀ necessityĀ ofĀ qualityĀ standards.Ā ProceedingsĀ ofĀ theĀ 11thĀ InternationalĀ ConferenceĀ onĀ TravelĀ BehaviourĀ Research,Ā Kyoto,Ā 16ā20Ā August.Ā Ā Wegener,Ā M.Ā andĀ F.Ā FuerstĀ (1999).Ā LandāUseĀ TransportĀ Interaction:Ā StateĀ ofĀ theĀ Art.Ā DeliverableĀ 2aĀ ofĀ theĀ projectĀ TRANSLANDĀ (IntegrationĀ ofĀ TransportĀ andĀ LandĀ UseĀ Planning)Ā ofĀ theĀ 4thĀ RTDĀ FrameworkĀ ProgrammeĀ ofĀ theĀ EuropeanĀ Commission.Ā InstituteĀ fuerĀ Raumplanung,Ā UniversitaetĀ Dortmund.Ā Ā Zhao,Ā Y.,Ā Kockelman,Ā K.M.:Ā TheĀ propagationĀ ofĀ uncertaintyĀ throughĀ travelĀ demandĀ models:Ā anĀ exploratoryĀ analysis.Ā AnnalsĀ ofĀ RegionalĀ Science.Ā 361,Ā 145ā 163Ā (2002)Ā Ā Ā page. 8
Download now