Integrated Corridor Analysis Tool (ICAT) Project

I-95 Corridor Coalition

Objective

Develop a regional transportation information system by integrating roadway inventory and travel demand data from the I-95 Corridor Coalition’s 16 state departments of transportation (DOT) into a multistate highway network; develop a web-based geographic information system (GIS) that provides Coalition members with access to the ICAT data; and develop applications to demonstrate how Coalition members can use ICAT to coordinate multistate transportation planning, investment, and operations planning.

Our Approach

Cambridge Systematics’ approach to developing ICAT included the following steps:

  • Develop a conceptual design for the system architecture, data integration, and data dissemination among the Coalition members.
  • Construct a 16-state multimodal transportation planning network, utilizing both state and national transportation data sources, to serve as a framework for display and analysis of current conditions, performance, and future transportation demand through the I-95 corridor.
  • Develop base- and future-year vehicle trip tables for the entire corridor that describe the approximate origins and destinations of auto and truck trips and make it possible to assign trips to different routes depending on travel time, cost, and reliability.
  • Work with Coalition member agencies to identify and develop applications that demonstrate the use of ICAT data to address multi-state transportation planning problems.  Initial applications have included: integration of crash data for highway safety planning; comparison of bridge and pavement performance measures across several states; and exploration of using ICAT for developing regional evacuation plans.

Web Sites

  • WebCAT is an interactive web-based GIS that provides on-line access to information on current highway and rail infrastructure, system performance, and forecasts of future travel demand and conditions in the Coalition region.  WebCAT enables users to view and navigate through a map of the entire Coalition region displaying highway and railroad networks, bridges, traffic bottlenecks, locations of fatal highway crashes, etc.  Most features can be queried for more detailed information.
  • DataCAT is a repository and download site for the geographic databases and other data files that comprise ICAT. Current data include the ICAT highway and rail networks, ICAT analysis zones and origin-destination trip tables, individual state road networks from which the ICAT highway network was derived, and copies of relevant national databases such as the National Highway Planning Network (NHPN), the National Bridge Inventory (NBI), and the Fatality Analysis Reporting System (FARS).

Project Results

Through the sponsorship of the I‑95 Corridor Coalition, Cambridge Systematics has developed ICAT, a GIS-based transportation information system for the entire 16-state Coalition region that links data on current and future transportation infrastructure condition and performance.  The network and data are accessible to all Coalition member agencies. Members are able to use the tool to paint a picture of transportation patterns across several states or the whole Coalition region, and to analyze trends and forecast future travel volumes.  ICAT will help member agencies consider a broader analysis perspective and get the best value for their customers from the tax dollars that are invested in the region’s transportation systems.