Abstract
A study of traffic at a signalised intersection under high throughputs should gain better understanding on traffic characteristics and direct to better management strategies for city traffic during peak periods. This study explores an analysis approach by applying restricted stop-line counts under high throughputs from the existing system as inputs based on analytical model to evaluate operation performance of an intersection. Adopting the analytical model in optimisation, the preliminary findings shows the different levels in degrees of saturation leading to distinct interpretations of that between the adaptive system and the analytical model, which might be the results from the detector positions of input volumes, the variations in cycle lengths and the difference of algorithms. Further study in the correlation of the degrees of saturation as the performance measure calculated by the adaptive system and the analytical model via controlling signal timing in the model could provide better comparable values.
