a)A route within an urban setting has three signalizedintersections in series and at maximum intervals of 50m from oneintersection to the next. During peak periods, there is backflow oftraffic from one intersection to the previous. As a TrafficEngineer, what cost effective measure will you propose to alleviatethis problem and how will you achieve it? It should be noted thatphysical improvements such as relocation of intersection, lanewidening, channelization, etc. cannot be considered asoptions.
b) Most of the traffic signal systems used in Ghana arepre-timed signals. There are instances where phases with hightraffic volumes have green times lower than phases with low trafficvolumes. What could account for this signal timing deficiency andwhat can be done to rectify it? (AN,5)
