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Central Indiana Suburban Transportation & Mobility Study (CISTMS)

An evaluation of suburban transportation needs and issues in Central Indiana, with recommendations for addressing those needs. Includes travel simulation models and land use analysis.

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Central Indiana Suburban Transportation & Mobility Study (CISTMS)

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  1. Central Indiana Suburban Transportation & Mobility Study (CISTMS) Central Indiana Suburban Transportation & Mobility Study Sponsored by INDOT in conjunction with the Indianapolis MPO Prepared by: HNTB Corporation Cambridge Systematics, Inc. Parsons Brinckerhoff

  2. Study Area North East West South

  3. Study Purpose • Evaluate existing and forecasted travel needs for “crosstown” (non-radial) corridors • Identify key issues and problems pertaining to suburban mobility on those corridors • Determine how needs can best be addressed from a planning and policy perspective • Develop Project Implementation Timeline • 10-25 years

  4. Study Activities • Model & evaluate corridor needs (4 corridors) • Evaluate potential benefits of “outer belt” for I-465 and other corridor facilities • Define land use/transportation relationships • Model & evaluate North-South Statewide Mobility Corridor (E) and I-69 routing through Marion County • Identify short- & long-term recommendations for each study corridor

  5. North-South Statewide Mobility Corridor (E)

  6. CISTMS Work Flow

  7. Central Indiana Suburban Transportation & Mobility Study (CISTMS) BASE CONDITIONS REPORT Prepared by: HNTB Corporation Cambridge Systematics, Inc. Parsons Brinckerhoff Central Indiana Suburban Transportation & Mobility Study

  8. Base Conditions Report CONTENT: • Overview of Study Area • Overview of each Study Corridor • Existing Conditions Data • Recommended Low-Cost Actions to Address Current Problems

  9. Base Conditions Report OVERVIEW OF STUDY AREA: • County, City and Town Census Data • Population and Employment Trend Data • Brief Transportation System Overview • 1990 & 2000 Commuting Patterns

  10. 1990 & 2000 Commuting Patterns To Marion County (2000) 150,000 trips per day From Marion County (2000) 50,000 trips per day

  11. Base Conditions Report CORRIDOR REVIEWS: • Overview of Parallel Arterials • State and Local Plans • Physical & Operational Reviews (State Highways -- INDOT Inventories) • Strategies to Maximize Existing Efficiency

  12. Base Conditions Report PHYSICAL REVIEWS: • Lanes, Surface Width, Shoulder Width • Percent “No-Passing” • Access Points per Mile • Right of Way Width • Urban – Rural Category

  13. Base Conditions Report OPERATIONAL REVIEWS: • Daily and Peak Hour Traffic Volumes • Speed Limit & Average Travel Speed • Percent “Time Spent Following” • Level of Service (A through F)

  14. Base Conditions Report Strategies to Maximize Existing Efficiency: • Access Management Actions • Traffic Engineering Improvements • Intelligent Transportation Systems (ITS) • Transportation Demand Management (TDM)

  15. Central Indiana Suburban Transportation & Mobility Study (CISTMS) TRAVEL SIMULATION MODEL Prepared by: HNTB Corporation Cambridge Systematics, Inc. Parsons Brinckerhoff Central Indiana Suburban Transportation & Mobility Study

  16. Travel Simulation Model • Indianapolis MPO Regional Travel Simulation Model • INDOT Statewide Travel Simulation Model

  17. Travel Simulation Model 2025 Network Updates for CISTMS: • INDOT Long Range Plan Projects Included • Indianapolis MPO Regional Plan Projects Included • I-69 from Evansville to Indianapolis Included (FEIS Alt 3C)

  18. Travel Simulation Model Bookend Alternatives: • Yr 2025 Current Plan (Minimum Change) Current 2025 Plan with only minor safety and operational improvements within study corridors – auxiliary lanes, intersection changes, spot improvements • Yr 2025 Outer Belt (Maximum Change) Current 2025 Plan, plus upgrade or build new roadways at interstate standards within each corridor; link them to provide a continuous circumferential route

  19. Travel Simulation Model Bookend Alternatives: • A range of options is being evaluated in CISTMS. • The bookend alternatives are intended to represent the outer limits of that range. • Neither the Current Plan nor the Outer Belt option is currently proposed. • Different options may be recommended for different corridors.

  20. Travel Simulation Model Model Runs (To Date) for CISTMS: • Yr 2000 base (testing and calibration) • Yr 2025 Current Plan (Minimum Change) • Yr 2025 Outer Belt (Maximum Change)

  21. 2025 Forecast • Current Plan Network • Veh-mi travel – 71.1 Mil • Ave trip length – 9.9 mi. • LOS E or worse – 876 mi.

  22. 2025 Forecast • Outer Belt Network • Veh-mi travel – 72.4 Mil • Ave trip length – 10.1 mi. • LOS E or worse – 746 mi.

  23. 2025 Outer Belt -Traffic Increases • I-69N – I-70 74,000 veh/day • I-69S – I-70 48,000 veh/day • I-70W – US 40 44,000 veh/day

  24. 2025 Outer Belt - • Traffic Reductions • I-69 NE 28,000 veh/day • I-69 SW 23,000 veh/day • I-465 NW 18,000 veh/day • I-465 NE 13,000 veh/day

  25. Central Indiana Suburban Transportation & Mobility Study (CISTMS) LAND USE MODEL Prepared by: HNTB Corporation Cambridge Systematics, Inc. Parsons Brinckerhoff Central Indiana Suburban Transportation & Mobility Study

  26. LUCI: Land Use in Central Indiana • Model to predict future patterns of urban development for the Central Indiana region • Purpose not to produce “best” forecast but alternative scenarios • Scenarios reflect policy choices, including restrictions on development, utility expansion • Scenarios reflect alternative assumptions for future development, including population growth, density and accessibility preferences

  27. LUCI/T Model • Created for CISTMS land use analysis • Restricted to nine-county area (from original 44 counties) • Uses travel time* rather than distance for employment accessibility • Uses traffic analysis zone employment data* *From regional travel simulation model

  28. 2000-2025 Urban Development 2025 Current Plan (Minimum Change) 2000 Existing (Base Condition) 550 sq.mi. urban 848 sq.mi. urban

  29. 2025 Urban Development Outer Belt (Maximum Change) Current Plan (Minimum Change) 848 sq.mi. urban 2,521 pop./sq.mi. 849 sq.mi. urban 2,520 pop./sq.mi.

  30. Possible Reasons for Small Differences • The existing base of county to county commuting trips is limited. • Urban development Fringe does not reach outer belt alignment (even in 2040). • Households have better employment access at edge of urban fringe than from outer belt. • Major travel time benefits between locations along outer belt, not to and from existing activity centers.

  31. Central Indiana Suburban Transportation & Mobility Study (CISTMS) PEER CITY ANALYSIS Prepared by: HNTB Corporation Cambridge Systematics, Inc. Parsons Brinckerhoff Central Indiana Suburban Transportation & Mobility Study

  32. Peer City Analysis Literature Review – Beltways and Land Use • Land use impacts relate to beltway function • Employment location more important than road (beltway) location • Land use affected by commuting“time budget” • Development influenced by proximity of beltway to urban “edge” • Many factors besides transportation determine patterns of growth and sprawl

  33. Peer City Analysis Selected Peer Cities Population Houston, TX 4,670,000 Boston, MA 3,407,000 Charlotte, NC 1,499,000 Nashville, TN 1,231,000 Indianapolis MSA population is 1.6 million

  34. Peer City Analysis Conclusions – Urban Sprawl & Beltways Urban growth, economic expansion and the trend of decentralized development prompts urban sprawl concerns nationwide Research is inconclusive regarding direct relationship of outer belts with urban sprawl Beltways (and all freeways) impact the location of development, but its character and intensity is influenced by land use planning and zoning

  35. Peer City Analysis Conclusions – Urban Sprawl and Planning Land Use Planning and early zoning is key to orderly growth and development Local planning is key since land use policies are determined locally Inter-jurisdictional participation is a necessity “Transportation objectives are regional, but land use impacts are local.”

  36. Central Indiana Suburban Transportation & Mobility Study (CISTMS) NEXT STEPS Prepared by: HNTB Corporation Cambridge Systematics, Inc. Parsons Brinckerhoff Central Indiana Suburban Transportation & Mobility Study

  37. CISTMS Work Flow

  38. CISTMS – Next Steps • Evaluate Future Corridor Needs • Review Planning Relationships With Local Roadways • Evaluate Statewide Mobility Corridor (East) • Examine Impact Of I-69 Travel Through Indianapolis • Develop Corridor Recommendations • Produce and Present Final Report

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