Evaluating Alternative Operations Strategies to Improve Travel Time Reliability (2013) / Chapter Skim
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Pages 18-21
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From page 18... ...
18 The purpose of this chapter is to describe the current effectiveness of transportation agencies (state, local, toll authorities, and metropolitan planning organizations with operations responsibility) , incident responders, and other stakeholders in meeting travel time reliability requirements.
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19 Global Positioning System data obtained from actual truck movements. Several roadway agencies suggest that the portion of trucks arriving on time is the best indicator of the reliability of a highway system from the freight mover's perspective.
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20 If an agency lacks the resources to implement these operational measures, the cost is borne by roadway users who experience additional delay and, possibly, accidents. This cost scenario is the same for unplanned special events and recurring congestion.
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21 improving travel time reliability requires managing the transportation network at performance levels that are as close to optimum as possible. This management task cannot be accomplished without the ability to monitor the performance of the roadway system.
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