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Semelhante a The Built Environment, Traffic Safety and Travel Choice
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The Built Environment, Traffic Safety and Travel Choice
- 2. Davis, CA 14 % of people ride to work
- 3. Davis, CA Road Fatality Rate: 1 per 100,000
- 4. Road Fatality Rate for All 157 California Cities Over 40,000 number per 100,000 population 0.0 17.3
- 5. Road Fatality Rate for All 157 California Cities Over 40,000 number per 100,000 population
- 8. Risk of Fatality (Fatalities as % of Injuries) California Cities of 40,000 to 120,000
- 10. Adapted from Stephen Marshall Pre-1950’s Post-1950’s Evolution of the Street Network
- 14. FHA Technical Bulletin No. 7 (1938) Planning Profitable Neighborhoods
- 16. Street network, safety and sustainability in 24 medium sized California cities Cities selected to represent a range of traffic safety level
- 19. Citywide Street Network Neighborhood Street Network Linear Tree Grid Tributary Radial Grid Tree Adapted from Stephen Marshall, Streets & Patterns
- 20. 550 Intersections per Square Mile Network Scale
- 21. 110 Intersections per Square Mile Network Scale
- 22. 45 Intersections per Square Mile Network Scale
- 23. Link-to-Node Ratio = 1.61 Link-to-Node Ratio = 1.13 Link-to-Node Ratio = 1.16 Network Connectivity
- 25. Safety Analysis Based on Geo-coding 230,000 Accident Records in 24 California Cities
- 26. Safety and Travel Choice Analysis done for 1040 Census Block Groups 24 California Cities
- 27. Travel Choice Based on Census Data 1040 Census Block Groups, 24 California Cities
- 28. versus
- 29. versus Safety Risk of Severe Injury or Fatality Chance of being Severely Injured 30% Higher Chance of being Killed 50% Higher
- 30. Odds of Dying in a Road Accident based on Intersection Density 1 in 200 1 in 500
- 31. Percentage of People Walking, Biking or Taking Transit
- 32. Percentage of People Walking, Biking or Taking Transit Effect of Intersection Density for Cul-de-sac Network
- 33. Percentage of People Walking, Biking or Taking Transit Effect of Intersection Density for Gridded Network
- 34. Evolution of Network in California Cities
- 35. Norman W. Garrick 11 X 2 X
- 37. Norman W. Garrick Sustainability Gap USA Norway Daily Miles Traveled For every man, woman and child
- 45. 15,000 11,000 14,000 11,000
Notas do Editor
- To tame the street so all street users can share in its function for their specific needs, We have to reduce the vehicle operating speeds.