A trip generation study was carried out to determine vehicle trip rates for residential land-use. The study involved traffic surveys at established housing estates with a combination of distinctive dwelling types characterised by the socio-economic variables. Area-wide, all purpose production rates were analysed and a set of representative vehicle trip rates for the different dwelling types were obtained. Empirical studies were performed to assess the capacity of different junction types, namely the priority, signalised and the grade-separated types. Based on field measurements of gap acceptance, delay and vehicle queue length analyses, three regimes of junction control were identified. identified. A planning chart based on traffic demand consideration was developed. With the vehicle trip estimation from the trip rates as established in the trip generation study, the planning chart has provided a consistent decision making criterion for junction selection relevant to access applications for housing scheme development. (A)
Abstract