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| The Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) mandated six management systems. In December 1996, the Federal Highway Administration and the Federal Transit Administration issued the Final Rule on Management and Monitoring Systems which made the six management systems optional. The exception is the Congestion Management System, which applies to Transportation Management Areas such as the Des Moines metropolitan area. |
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| The Iowa Department of Transportation (Iowa DOT), in cooperation with other governmental agencies, established a Congestion Management System Technical Committee to develop a Congestion Management System for Iowa. The Des Moines Area Metropolitan Planning Organization (MPO) participated with that committee. The Des Moines Area MPO developed a Congestion Management System process for the Des Moines metropolitan area.* The MPO Congestion Management System process identifies three stages. The first stage determines current transportation system performance and levels of congestion. The Des Moines Area MPO conducts a travel survey as part of this stage. This survey covers various routes that are experiencing congestion. The MPO's Travel Time Survey report document the results of this study. The second stage identifies demand management techniques, operational management techniques, and capital intensive activities for alleviating congestion. Demand management strategies include transit improvements, congestion pricing, growth management, and high occupancy vehicle lanes. Operational management strategies include traffic operations improvements, access management, incident management, and intelligent vehicle and highway activities. Capital intensive strategies include construction of new lanes of roadway and transit capital acquisitions, such as buses. The third stage is the process by which strategies are selected to be included in the Des Moines Area MPO's Long-Range Transportation Plan (LRTP) and the MPO's Transportation Improvement Program (TIP). |
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PLANNING ACTIVITIES
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| Access Management Bicycle & Pedestrian Facilities Federal Functional Classification Federal Funding Goods Movement & Freight Intelligent Transportation Systems Land Use Management Systems Planning Data Public Participation Transit Travel Demand Modeling Travel Time Survey |
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| The Iowa Department of Transportation (Iowa DOT) established a Pavement Management System Technical Committee to develop this management system for Iowa. The Iowa DOT hired a consultant to collect pavement data for roadways that are eligible for federal funding, but not part of the National Highway System (the Iowa Department of Transportation already collects data on the National Highway System). In February 1997, the Des Moines Area MPO agreed to participate in the Iowa DOT's Pavement Management Data Collection Program. The data consist of distress parameters for conditions such as cracking, patching, and potholes. The pavement condition data is used in the project evaluation which the Des Moines Area MPO performs on applications to the MPO for Surface Transportation Program funding. |
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| The Iowa Department of Transportation (Iowa DOT) established a Safety Management System Coordination Committee to develop a Safety Management System for Iowa. The committee developed the Iowa Strategic Highway Safety Plan (Safety Plan), patterned after the Strategic Highway Safety Plan developed by the American Association of State Highway Transportation Officials (AASHTO). The Safety Plan addresses 22 topics, such as behavior of drivers, interaction between highway vehicles and other travel modes, improved highway design, and enhancement of emergency response services. The Des Moines Area MPO uses the Iowa DOT's Accident Location and Analysis System as information for the project priority evaluation process. |
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