integrated corridor analysis tool (icat) william w. stoeckert i-95 corridor coalition
Post on 20-Jan-2016
227 Views
Preview:
TRANSCRIPT
Integrated Corridor Analysis Tool (ICAT)
William W. StoeckertI-95 Corridor Coalition
Presentation
• Problem• Vision• Work Steps• Status • Next Steps• Applications
Integrated CorridorAnalysis Tool (ICAT)
• Analysis and planning tool to inform and coordinate multi-state transportation planning, investment, and operations planning
• Developing a GIS-based transportation network, a linear referencing system, and basic roadway data
• Initial applications will focus on bottleneck analysis, freight planning, and emergency/ evacuation planning
Problem
• “Islands of information”– State of practice - a patchwork of unconnected
transportation planning networks, roadway and rail line data, and trip information
– Result - Coalition members cannot use the information effectively to inform and coordinate multi-state transportation planning, investment, and operations planning
Many maps, but no Corridor-scale transportation planning networks
Complete map coverage Incomplete network coverage
State and MPO transportation
networks
Reams of roadway and rail line data, but few common reference points
Roadway Conditions Database
No. of lanes
Pavement type
Pavement condition
Traffic volume…
…reported by section number
Fatality and Injury Database
Fatalities
Injuries…
…reported by milepost location
12.4
Detailed information on metropolitan trips, but limited information on
long-distance interstate trips
Metropolitan Trip Information• Auto, bus, subway, and
commuter rail– Truck and freight rail in
larger MPOs
• Work, business, recreation, etc. trip purposes
• Annual, daily, peak and off-peak
• Traffic analysis zones
Interstate Trip Information• Some auto trips, large truck
trips only, freight rail• Limited number of trip
purposes and commodities• Annual• State-to-state or by large
economic regions (BEA-to-BEA)
• Some proprietary county-to-county data
ICAT VISION
• GIS- based multi-state transportation network
• Basic roadway and traffic data
• 16-state Coalition regional coverage
• Accessible to Coalition members
Local Roadway
Data
Metro Travel
Demand Data
Statewide Travel
Demand Data
State Roadway
DataHPMS
FAF (truck only)
Corridor Roadway
Data
Corridor Travel Data
Local/Metro Transportation
Network
State Transportation
Network
Multi-state Transportation
Network
National Transportation
Network (NHPN)
ICAT
Project Work Steps
• Obtain GIS-based network map (base line-layer) and evaluate for accuracy, detail, and connectivity
• Process and correct the base line layer• Develop and apply the linear referencing
system (LRS)• Obtain roadway characteristics, capacity, and
operations data for several States• Integrate and relate data to network
GIS-Based Network
• Red lines – FHWA National Highway Planning Network (NHPN)– Covers Interstates, National Highway System, National Truck
Network, principal arterials, intermodal connectors
• Green lines – “GDT routes/Caliper “Streets” base layer– Publicly available road network produced by GDT and made
available to license holders of Caliper’s TransCAD (Caliper Streets)
– Covers NHPN, local roads, and collectors
Linear Referencing SystemPavement Types
Functional Class
Lane Widths
Accidents
ROUTE
LRS relates information from separate databases to a common route location system
Lane Widths
Accidents
ROUTE SEGMENTS
LRS makes possible dynamic segmentation of network data; e.g., to study relationship of accident locations and pavement widths
ROUTE
Status of Work
• Completed– Network obtained– LRS tool methodology complete– Federal NHPN & HPMS data related for all
jurisdictions– State data obtained from 3 states
Proposed Next Steps
• Development of ICAT Delivery System
• Complete Data Integration
• Trip Table Development– General Vehicle Trip Tables– Freight-Truck Trip Tables
Development of ICAT Delivery System
Objective: Develop a delivery system that will make the ICAT GIS network and set of linked databases available on-line to Coalition members.
– Option 1: Store Geodatabase on workstation accessible through an IIS server running under Windows NT or Windows XP Pro.
– Option 2: Build website using Apache/Tomcat software and Java programs.
Complete Data IntegrationObjective: Complete integration of State data begun in Phase I (6 to 8 more States and the District of Columbia) using same strategy so that all 17 jurisdictions are covered.
Trip Table Development1 - Develop General Vehicle Trip Tables
– Develop current and future year general vehicle trip tables (auto and all-truck) using traffic volume data and an ODME (origin-destination matrix estimation) methodology.
2 – Develop Freight-Truck Trip Tables (Optional Task)– Purchase/lease Reebie TRANSEARCH freight-truck data
(county-to-county level trip table) and develop system wide base and future year freight truck trip tables.
– Construct non-freight truck trip tables
ICAT Applications
• Corridor bottleneck analysis• Freight planning• Traveler information/511• Evacuation/emergency planning• Safety/accident prevention
Multi-State Capacity Analysis
Route Analysis
Bottleneck Analysis
Select Link: I-95 @ Delaware/Maryland Border
Long Distance Travel Demand
Conclusions
• ICAT is a tool that will support analysis of long distance travel issues affecting multiple states
• It directly supports the Coalition’s vision, mission, goals and guiding principles
• Longer term, it can serve as a archive of information provided by member agency systems
top related