Title: TCRP H-36 Reinventing the Interstate: A New
1TCRP H-36Reinventing the Interstate A New
Paradigm for Multimodal Transportation
Facilities
- MICM Workshop
- Christopher Ferrell, Ph.D.
- Dowling Associates, Inc.
2Key Study Issues
- Previous Research Has Established
- Factors ? Successful Transit
- Factors ? Successful Highways
- Factors ? Successful Multimodal Highway
Corridors? - Study Goal Develop New Paradigm!
- Develop Multidisciplinary Approach
3New Paradigm Definition
- Multimodal Facilities Highways Transit
Pedestrians Bicycles - Corridor Multimodal Facilities Surrounding
Land Uses - Multimodal Corridor New Paradigm Optimized
Combinations of Multimodal Facilities Land Uses
4What Factors Influence Optimal Corridor
Performance?
- Transportation Facility Alignment Factors
- Modes Available
- Facility Design Characteristics
- Station Corridor Factors
- Land Use
- Urban Design
- Socio-Demographics
5Highways Transit Different Systems, Different
Needs
- How do we integrate non-auto modes into a highway
environment? - How do we manage mitigate conflicts between
modes and factors?
6- Development Potential
- Optimizing Multimodal System Capacity
- Transit System Ridership
- Highway Throughput
7Facility Design Alignment Opportunities
- Highway design
- interchanges
- ramps
- lanes
- grade/geometrics
- Transit facility type and design
- Modes
- BRT, LRT, HRT, Commuter
- Transit alignment choices
- median-running
- side-running
- elevated
- tunnel
- Transit station placement
8Facility Design Alignment Constraints
- Grade
- Max grade urban freeway 6
- Max grade heavy rail 4
- Available highway R.O.W (Width)
- R.O.W. obstructions
- Bridge placement and design
- Tunnel placement and design
9Station vs. Corridor-Level Factors
- Station-Level
- The 4 Ds
- Density
- Diversity
- Design
- Distance
- Ramp Placement
- Parking
- Pricing
- Supply
- Corridor-Level
- Accessible Destinations
- Jobs/Housing Balance
- Coordinated Parking
- Pricing
- Supply
- Growth Controls
10Auto vs. Transit-Oriented Corridors
Transit-Oriented Objective Max. Non-Auto Access
to Transit Activity Centers
Auto-Oriented Objective Max. Auto Access to
Individual Land Uses
Corridor Continuum
Multimodal Corridor Continuum
Multimodal Transit-Oriented Objective Emphasize
Non-Auto Access to Transit Stations Activity
Centers
Multimodal Auto-Oriented Objective Emphasize
Auto Access to Employment Centers Transit
Stations
11Auto vs. Transit-Oriented Multimodal Corridors
Multimodal Transit-Oriented
Multimodal Auto-Oriented
- Station-Level Factors
- High Density
- High Diversity (Mixed-Use)
- Design (Pedestrian Scale)
- Distance (Short Walk)
- Ramps Far from Stations
- Parking
- Pricing
- Supply (Min. Spaces Park Ride)
- Station-Level Factors
- Low Density
- Low Diversity (Separated Uses)
- Design (Max. Auto Flow)
- Distance (Short Drive)
- Ramps Near Stations
- Parking
- Pricing
- Supply (Max. Spaces Park Ride)
- Corridor-Level Factors
- Clustered Employment
- Low/Medium Density Residential Dispersed from Key
Stations - Jobs/Housing Imbalance (Serve CBD)
- Corridor-Level Factors
- Clustered Destinations
- Jobs/Housing Balance
- Coordinated Parking
- Pricing
- Supply
- Growth Controls
12Corridor Typology
13Identifying Successful (and Unsuccessful)
Multimodal Highway Corridors Stations
- S.F Bay Areas Pittsburg/Bay Point BART Line
- Denver Metros T-REX Corridor
14Transit-Oriented Multimodal Corridor Example
Rockridge BART
- Notable Characteristics
- Elevated Tracks Freeway
- Vibrant Neighborhood Commercial Area
- Park Ride Lots Tucked Under Freeway
- Pedestrian-Friendly Underpass
- Landscaping Masks Parking Lot
- Artwork/Murals
15Auto-Oriented Multimodal Corridor Examples
Denvers T-REX
- Notable Characteristics
- Side-of-Freeway Alignment
- Stations Often at Interchanges
- Park Ride Lots
16Multimodal Transit-Oriented Corridors (MTOCs)
Dispersed Ramps Dispersed Traffic
17Multimodal Auto-Oriented Corridors (MAOCs)
Concentrated Ramps Concentrated Traffic
18Multimodal Auto-Oriented Corridors (MAOCs)
Denvers T-REX Close-Up
- Auto Access Priority
- Ramps Close to Station
- Park Ride Lot Adjacent to Station
- Few Ped-Oriented Land Use Opportunities
19Multimodal Transit-Oriented Corridors (MTOCs)
BARTs Rockridge Close-Up
20Multimodal Investment Tradeoffs
Auto-Oriented Corridor Spending
Non-Auto Corridor Spending
21Analysis Tools and Evaluation Criteria
22Key Stakeholder Issues Questions
- Multidisciplinary Approach is Required
- Identify Needs of Key Stakeholders
- Barriers to Developing Multimodal Corridor
Systems - Useful Knowledge/Practice
- Analytical Tools Development
- Developing Political Support
- Opportunities Constraints for Partnerships
- Weaving the Expertise of Organizations Together
- Identification of Core Competencies
- Desired Institutional Changes/Reform
- Educational/Marketing Materials