LOUIS is an open source platform for developing customized online urban information systems. It allows cities to integrate data from various sources and departments to create applications tailored to their specific needs. Examples of LOUIS applications include roadway information systems, planning information systems, and buildings information systems. LOUIS uses open source technologies like PostgreSQL, PostGIS, and MapServer to power its applications and provide interactive maps, reports, and tools for users.

2. EXAMPLE OF THE LOUIS INTERFACE

3. To do… New Edit Complaints… pipes gates wells pumps tanks hydrants orthos hydrology boundaries Leaks… Maintenance… Accounting… Repairs… Materials… Contracts… In Progress… Inspections… corporations curb stops home connectors meters contours roads LOUIS – The CITY LAB “Local On-line Urban Information System”

4. HOW INFORMATION IS FED TO LOUIS

5. WATER DISTRICT INFORMATION SYSTEM data data Standalone Apps DB DB DB MassGIS Census Water-related web sites Online Datasets Complaints Meters Water District CKDB data Billing Pipes Gates Pumps Wells Tanks Hydrants City Knowledge Orthos Demographics Constants Corporations Curb stops Meters Connectors To do… New Edit Complaints… pipes gates wells pumps tanks hydrants orthos hydrology boundaries Leaks… Maintenance… Accounting… Repairs… Materials… Contracts… In Progress… Inspections… corporations curb stops home connectors meters contours roads

6. dept dept dept CK CK CK Web-GIS dept dept dept Legacy silos DB DB DB Census RE sales Economic Indicators Standardization Middleware Stubborn Error Correction Online Datasets CAMA Traffic Water FACADES Report Report Report Report Application Application Application Dept. Water DPW Parks

7. THE INNER ARCHITECTURE OF LOUIS

8. dept dept dept CK CK CK Web-GIS dept dept dept Legacy silos DB DB DB Census RE sales Economic Indicators Standardization Middleware Stubborn Error Correction Online Datasets CAMA Traffic Water FACADES Report Report Report Report Application Application Application Dept. Water DPW Parks

9. POST-GRES CK Web Data Servers POST GIS Mapserver Facade Report Html Google Earth Google Maps browser java Legacy DB Standardization Error Correction Excel Facade Report Facade Report

10. POST-GRES CK Web Data Servers POST GIS Mapserver Facade Report Html Google Earth Google Maps browser java Legacy DB Standardization Error Correction Excel Facade Report Facade Report

11. LOUIS’s TECHNOLOGICAL FOUNDATION

12. POST-GRES CK Web Data Servers POST GIS Mapserver Facade Report Html Google Earth Google Maps browser java Legacy DB Standardization Error Correction Excel Facade Report Facade Report

13. EXAMPLES of LOUIS APPLICATIONS

14. Roadway Information System (Boxborough and Spencer)

15. ROADWAY INFORMATION SYSTEM data data Existing Data DB DB DB MassGIS Census Road-related web sites Online Data Complaints Work Orders Highway Dept. CKDB data Buildings Roads Segments Markings Pavement Lights Signs City Knowledge Orthos Demographics Constants Sidewalks Catch basins Potholes Guardrails To do… New Edit Compliance… roads segments pavement markings lights signs orthos hydrology boundaries Advanced… Emergency… Accounting… Complaints… Maintenance… Contracts… In Progress… Repairs… catch-basins sidewalks guardrails potholes contours buildings

16. To do… New Edit Compliance… roads segments pavement markings lights signs orthos hydrology boundaries Advanced… Emergency… Accounting… Complaints… Maintenance… Contracts… In Progress… Repairs… catch-basins sidewalks guardrails potholes contours buildings LOUIS – The CITY LAB “Local On-line Urban Information System”

17. Planning Information System (Venice)

18. EDILIZIA PRIVATA INFORMATION SYSTEM data data Dati Esisetnti DB DB DB CENSIMENTI SITI WEB Dati On-Line EDIFICI PRG Edilizia Privata CKDB data GLOBAL EDIL City Knowledge ORTOFOTO DEMOGRAFIA DATI STATISTICI Permessi Destinazioni d’uso D.I.A. Licenze Parcheggi Fognature Piani Edifici Tetti

19. Gestione… Nuovo Modifica Fine Lavori… Edifici Edifici in costruzione Lavori in corso Illuminazione Pubblica Dettagli Ortofoto Idrografia Strade Licenze Edilizie… Avanzate… Lavori in corso… Destinazioni d’ uso… D.I.A.… Statistiche… Permessi… Impatti Urbanistici… Traffico Marciapiedi Licenze Tetti Aree Verdi Sezioni Censuarie LOUIS – The CITY LAB “Local On-line Urban Information System” 10 m / 1:250 Rigenera Mappa V isualizzatore S trumenti P referiti O pzioni H elp Parcheggi

20. Buildings Information System (London)

21. Analysis… New Edit Uses… buildings roads parks schools churches industries Energy… Maintenance… Leases… Repairs… Notifications… Contracts… Permits… Inspections… public buildings council estates businesses orthophotos CHP plants 50 m LOUIS – The CITY LAB “Local On-line Urban Information System”

22. MERTON BUILDINGS INFORMATION SYSTEM Standalone Applications DB DB DB Ordnance Survey DTI ONS Online Datasets Permits Plans Notifications Ownership Use Construction Energy City Knowledge Mastermap Energy Use Demographics Schools Estates Analysis… New Edit Uses… buildings roads parks schools churches industries orthos hydrology boundaries Energy… Maintenance… Leases… Repairs… Notifications… Contracts… Permits… Inspections… public buildings council estates businesses orthophotos roads CHP plants 50 m LOUIS – The CITY LAB “Local On-line Urban Information System” data data Buildings CKDB data data data

23. dept dept dept Buildings Business Energy Web-GIS dept dept dept Legacy silos DB DB DB Ordnance S. DTI ONS Standardization Middleware Stubborn Error Correction Online Datasets Estates Permits Schools FACADES Report Report Report Report Application Application Application Dept. Building Control Dev’mnt Control Licensing Mastermap E. Demand Census

24. Data Farming Matrix (London)