1. Tackling Traffic Congestion: UCLA Symposium on the Transportation – Land Use – Environment Connection October 2002 Institute of Transportation Studies

2. Question One: Is traffic congestion a sign of success or failure? Institute of Transportation Studies

3. Question Two: Should we focus on congested networks or congested trips? Institute of Transportation Studies

4. A Sample Drive-Alone Commute Trip DistanceTime Trip Segment Distance Time Speed Share Share Walk to car 0.01 miles 0.2 min 3 mph 0.1 % 0.6 % Drive to collector 0.25 miles 1.3 min12 mph 2.4 % 3.5 % Drive to arterial 0.50 miles 1.9 min16 mph 4.7 % 5.2 % Drive to freeway 2.00 miles 6.0 min20 mph 18.9 % 16.6 % Drive on congested freeway 6.00 miles14.4 min25 mph 56.6 % 39.9 % Drive on arterial 1.50 miles 4.5 min20 mph 14.1 % 12.5 % Drive in parking structure 0.25 miles 1.9 min 8 mph 2.4 % 5.2 % Walk to office 0.10 miles 6.0 min 1 mph 0.9 % 16.6 % Total/Average10.61 miles 36.1 min 18 mph100.0 %100.0 % Institute of Transportation Studies

5. Question Three: Do people really see congestion as less of a problem than they let on? Institute of Transportation Studies

6. Question 3A: If road pricing holds such promise to reduce congestion, why are people so hostile to the idea? Institute of Transportation Studies

7. Question Four: Does expanding the capacity of congested roads only make things worse? Institute of Transportation Studies

8. Question Five: How do land use patterns affect travel behavior and, in turn, congestion? Institute of Transportation Studies

9. Question 5A: If Smart Growth can reduce vehicle use, can it also reduce congestion? Institute of Transportation Studies

10. Population Density versus Travel Density Institute of Transportation Studies LocationPopulation Density Person TravelTravel Density (people/acre)(vmt/person/day)(vmt/acre/day) Healdsburg5 people/acre30 miles/person150 miles/acre Berkeley30 people/acre10 miles/person300 miles/acre San Francisco250 people/acre4 miles/person1,000 miles/acre

11. Question Six: What are the environmental costs of congestion, and the environmental benefits of congestion mitigation? Institute of Transportation Studies

12. Question Seven: So where do we go from here? Institute of Transportation Studies

13. Damn This Traffic Jam: Defining, Measuring, and Understanding Traffic Congestion Congestion in Cities: Where? When? What Kind? How Much? Martin Wachs, Roy W. Carlson Distinguished Professor of Civil & Environmental Engineering and City & Regional Planning, UC Berkeley Congestion 101: Transportation System Supply, Travel Demand, and Traffic Congestion Kara M. Kockelman, Clare Boothe Luce Assistant Professor of Civil Engineering, University of Texas, Austin Institute of Transportation Studies