doi:

DOI: 10.3724/SP.J.1249.2012.05466

Journal of Shenzhen University Science and Engineering (深圳大学学报理工版) 2012/29:5 PP.466-470

Reasonable allocation of flexible capacity for ramp coordinated metering


Abstract:
The idea of flexible capacity and the problem of its reasonable allocation for ramp coordinated metering are put forth in consideration of the traffic characteristics of periphery road. The optimal coordinated control metering of multi-ramps is discussed, and the efficiency and equity of flexible capacity allocation is analyzed by modifying the length of control cycle. A modified ramp latency model is posed using the method of queuing theory, and the related redundancy latency cycle amount is designed to evaluate the consequence quantitatively. With in-situ traffic flow data, two scenarios of no-control and coordinated with different flexible capacity using strategies are compared. Results demonstrate the advantages of the new method.

Key words:traffic control,freeway,ramp coordination,flexible capacity,optimal control,redundancy latency cycle amount

ReleaseDate:2014-07-21 16:23:28

Funds:National High Technology Research and Development Program(2007AA11Z213)



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