SWOT Analysis Of SCOOT

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B.SCOOT Greenough and Kelman proposed Split Cycle Offset Optimization Technique (SCOOT). It is an online signal timing optimizer developed in 1973 by the Transport Research Laboratory in the United Kingdom. SCOOT has been implemented into real-world application since 1979.It is designed for general application within a computerized Urban Traffic Control System. SCOOT implements a method of coordination that adjusts the signal timings frequently and make small increments to match the latest traffic situation. Data from vehicle detectors are analyzed by an on-line computer which contains programs that calculate traffic flows. The amount of green for each approach (Split), the time between adjacent signals (Offset), and the time allowed for all…show more content…
The objective function is not sufficient for use in various traffic conditions. SCOOT does not provide good results to deal with congestions, especially for those caused by…show more content…
It was developed by Road Transit Authority, in Sydney, Australia. SCATS gathers data on traffic flows in real-time at each intersection which fed through the traffic controller to a central computer. The Central computer makes adjustments by incrementing or decrementing the traffic signal timings based on minute by minute changes in traffic flow at each intersection. SCATS architecture is made up of a central computer, regional computer and local controllers. The central computer provides centralized monitoring of system performance and equipment status. It is used as an input for data collection and monitoring and it is connected to the management computer. The management computer works as a printer terminal, visual display and PC Station in order to maintain system at minimum resource owing to central management and to diagnose faults quickly. The regional computer maintains autonomous traffic control of a set of controllers. It performs the strategy control algorithm. Expansion of the system is done by simply adding regional computers [17, 18]. Drawbacks of SCATS: With the stop line detection concept, it is impossible to provide current feedback information about the performance of signal progression. There is no traffic model in SCATS; the “adaptive” process is completed by the local actual control, which limits the use of an optimization methodology.
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