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Adaptive Traffic Control Systems: Domestic and Foreign State of Practice (2010) / Chapter Skim
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Pages 23-27

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From page 23...
... In the long term, such hibernating systems may be left alone until they are replaced by conventional traffic signal control systems. Therefore, to acquire and retain the proper level of knowledge to operate ATCSs, agencies need to: • Receive proper initial training at the time when the ATCS is initially deployed, • Acquire continuous training and support to resolve operational issues, and • Retain the expertise (personnel)
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From page 24...
... 24 OPERATIONS The deployment of an ATCS can bring significant benefits to traffic performance on the network where it is installed and requires a commitment to staffing for operations and maintenance. ATCSs are often presented as a labor-saving alternative to conventional traffic control, as the signal timing plans do not need to be developed on a regular basis.
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From page 25...
... • If traffic demand is light the cycle was lower and more accommodating. • It does well when traffic flow is incremental, not when there are turbulent fluctuations in volume and demand.
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From page 26...
... Another 44% of respondents agreed that maintenance of ATCS is more demanding, but do not perceive such a large difference. Twenty-three percent found ATCSs to be similar to convenMuch more demanding than maintenance of regular traffic signals; 7; 16% More demanding than maintenance of regular traffic signals; 19; 44% Same as maintenance of regular traffic signals; 10; 23% Less demanding than maintenance of regular traffic signals; 5; 12% Much less demanding than maintenance of regular traffic signals; 2; 5% FIGURE 6 Level of difficulty of maintaining ATCSs.
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From page 27...
... ATCSs are only tools for traffic control, and as with any other tools could be supervised and controlled by a skilled engineering staff. Proper acquisition, training, and retention of expertise within an agency are the most important factors for alleviating institutional barriers for ATCS deployments.
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Key Terms

  • traffic flow
  • network control
  • traffic control
  • signal control
  • traffic signal

  • traffic demand
  • existing traffic
  • timing plan
  • traffic signals
  • traffic volumes

  • traffic conditions
  • nal control
  • timing plans
  • signal timing
  • traffic engineers

  • traffic engineer


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