To alleviate traffic congestion and safety concerns on the Gardiner Expressway in Toronto, Ontario, Canada, the City of Toronto has elected to implement scheduled closures for the two onramps since early 1970s. This paper investigates the traffic impacts of the daily onramp closures at Gardiner Expressway and Jameson. In particular, this paper will qualitatively evaluate the impacts on traffic flow downstream and upstream of the onramp location on a typical day. The paper further computes quantitatively the average changes to traffic flow variables such as traffic volume throughput due to the ramp closures. The network performance metrics (VHT, VKT, delay and travel time) are computed and analyzed to determine the performance benefits of the ramp closures.
Samenvatting