Title: Development of Performance Measures for the Illinois State Toll Highway Authority
Abstract:The Illinois State Toll Highway Authority (Tollway) is a leader in intelligent transportation systems (ITS) deployments in Northeastern Illinois. While the Tollway has operated ITS devices for several...The Illinois State Toll Highway Authority (Tollway) is a leader in intelligent transportation systems (ITS) deployments in Northeastern Illinois. While the Tollway has operated ITS devices for several decades, the various systems all came together in 2004 with the opening of the Traffic and Incident Management System (TIMS). In 2007, TIMS was integrated with the existing Tollway computer aided dispatch (CAD) system. In 2008, the Tollway tasked their traffic engineer to answer a short question: “If we have two systems that create a wealth of data on operations, how can we best use this information to improve operations and provide answers to the public and management?” What started as a short question, became much more detailed. A literature review provided some very quick answers, many of which raised more questions. The Tollway has created new tools that take advantage of detailed sensor data and incident information allowing the Tollway to better understand traffic, improve operations, and provide more timely customer support. This paper details consideration and development of numerous performance measures covering travel time and delay, safety, incident management, and other areas. This is the beginning of an evolutionary process to comprehensively and responsively measure performance that will improve safety and operations on the 286-mile Tollway system.Read More
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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