ALINEA Algorithmbased Onramp Control for Expressways in Shanghai

Abstract:

ALINEA algorithm is adopted to solve the congestion of the merging area of Wuyi onramp with a consideration of the restriction of the queue length by analyzing the the geometric layout and traffic data of the Wuyi onramp.Results show that the speed of the mainline has enhanced and the pulse characteristics of ramp volumes has weakened by offline simulation. So ALINEA algorithm is deemed to be a suitable method for onramp control of Shanghai expressway.

Key words:expressway; onramp control; ALINEA algorithm; restriction of the queue length