Establishing Monitoring Programs for Travel Time Reliability (2014) / Chapter Skim
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Pages 102-104
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From page 102... ...
102 Reliability Project L02 within SHRP 2 was undertaken to cre ate methods by which travel time reliability can be monitored, assessed, and communicated to end users of the transporta tion system. The project developed guidance for operating agencies about how they can put reliability measurement methods into practice by enhancing existing monitoring sys tems or creating new ones.
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From page 103... ...
103 times on I-8 westbound in San Diego across a 3-month period under various operating conditions. The distributions are shown in a cumulative fashion; the location of each line shows how many travel times are that value or shorter.
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From page 104... ...
104 reliability improves over time by answering the following questions: • What is the distribution of travel times in the system? • How is the distribution affected by recurrent congestion and nonrecurring events?
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