Robert E. Griffiths Technical Services Director Department of Transportation Planning

1. The Regional Mobility and Accessibility StudyInitial Results of CLRP/CLRP+ Analysis with Round 6.4 Growth Forecasts and Five Alternative Land Use Scenarios Robert E. Griffiths Technical Services Director Department of Transportation Planning National Capital Region Transportation Planning Board Meeting July 21, 2004

2. Regional Mobility and Accessibility Study • Origin: • Special Study called for by the TPB [TPB R12-2001] • Purpose: • “Evaluate alternative options to improve mobility and accessibility between and among regional activity centers and the regional core” • Elements of Study: • Regional Congestion Management Program (CLRP+) • Land Use considerations and alternative scenarios • Transportation scenarios with additional highway and transit facilities and capacity, including Potomac River crossings

3. Regional Mobility and Accessibility Study • Study Approach: • “Building-Block” Method • Organization of Study: • Joint Technical Working Group (JTWG) • TPB Technical Committee • Planning Directors Technical Advisory Committee • MWAQC Technical Advisory Committee • TPB, MDPC and MWAQC Citizen Advisory Committees • Monthly Meetings • Briefings/Work Sessions with TPB and MDPC

4. Regional Congestion Management Plan (CLRP+ Scenario) • Coordinated Regional Transit Service Improvements • Metrorail Core Capacity improvements • New and Restructured bus routes • Signal preemption and bus priority lanes • Commuter rail and commuter bus enhancements • Traffic Operations Improvements • Enhanced management of freeway and arterial road systems • Increased Incentives for Ridesharing and Telecommuting • Active promotion of ridesharing and telecommuting programs • Bicycle and Pedestrian Facilities Improvements • Better designed bicycle and pedestrian facilities in regional activity centers and around transit stops

5. CLRP+ Scenario with Coordinated Transit Service Improvements: Travel Modeling Results

6. Round 6.4 Forecasts of Household and Job Growth

7. Regional Activity Centers/Clusters • 24 Clusters comprise about 455 square miles (13 percent) of the region’s total land area • These regional activity clusters are forecast to capture 70% of the region’s job growth and 42% of the region’s household growth in the 2010 to 2030 time period

8. Five Alternative Land Use Scenarios • “Higher Household Growth in Region” • “More Household Growth in Inner Areas and Clusters” • “More Job Growth in Outer Areas” • “ Region Undivided” • “Transit-Oriented Development”

9. Higher Household Growth in Region Scenario • Assumes 216,000 more households by 2030 than in Round 6.4 growth forecasts • Locates additional households in regional activity centers / clusters • Reduces growth in commuter and other vehicle trips from areas outside the region • Assumed additional 200,000 households would increase forecast 2010 to 2030 household growth by 60%

10. More Households in Inner Areas and Clusters Scenario • Places more of the region’s future household growth closer to major employment concentrations • Improves the mix of jobs and housing in regional activity center / clusters • Improves job / household balance in all jurisdictions • Assumes a shift of 84,000 households, 23% of the forecast 2010 to 2030 growth

11. More Jobs in Outer Areas Scenario • Places more of the region’s future job growth in outer suburban jurisdictions • Concentrates more jobs in growing outer area regional employment centers / clusters • Improves job / household balance in all jurisdictions • Assumes a shift of 82,000 jobs, 11% of the forecast 2010 to 2030 growth

12. Region Undivided Scenario: Household Growth Pattern Changes • Places more future job and household growth in eastern portion of region • Concentrates more household growth in eastern area regional activity centers / clusters • Improves job / household balance in eastern and western portion of region • Assumes a shift of 57,000 households, 16% of the forecast 2010 to 2030 growth

13. Region Undivided Scenario: Employment Growth Pattern Changes • Places more future household and job growth in the eastern portion of the region • Concentrates more job growth in eastern area regional activity centers / clusters • Improves job / household balance in eastern and western portion of region • Assumes a shift of 114,000 jobs, 15% of the forecast 2010 to 2030 growth

14. Transit-Oriented Development Scenario:Household GrowthPattern Changes • Places more of the region’s future household and job growth around current and planned Metrorail stations, commuter rail stations or other transit centers • Assumes a shift of 125,000 households, 35% of the forecast 2010 to 2030 growth

15. Transit-Oriented Development Scenario: Employment Growth Pattern Changes • Places more of the region’s future household and job growth around current and planned Metrorail stations, commuter rail stations or other transit centers • Assumes a shift of 150,000 jobs, 19% of the forecast 2010 to 2030 growth

16. Travel Modeling Results for Alternative Land Use Scenarios: Change in 2030 Vehicle Trips by Land Use Scenario

17. Percent Change in 2030 Vehicle Miles of Travel (VMT)

18. Percent Change in 2030 VMT Per Capita

19. Percent Change in 2030 Daily Transit Trips

20. Percent Change in 2030 Carpool/Vanpool Commuters

21. Percent Change in 2030 Walk and Bike Commuting Trips

22. Percent Change in 2030 Lane Miles of Severe AM Peak Period Congestion

23. Next Steps: • Estimate the effects of CLRP+ traffic operations, ridesharing and telecommuting incentives & bike/pedestrian improvements on regional travel demand measures • Develop and refine the alternative transportation scenarios to be modeled with the alternative land use scenarios • Further specify the network coding and land use assumptions for an enhanced HOV/HOT/Express Toll Lane transportation scenario to be analyzed and evaluated with the other alternative scenarios • Evaluate the alternative transportation and land use scenario for all measures of effectiveness developed for this study.