Field determination of flow travel time for different urban condition in the humid tropics -case study in Taman Mayang sub catchment / Sulaeman Haron

This study is to determine the Time Of Concentration for stormwater flow in an urbanized catchment. Taman Mayang catchment located in Petaling Jaya has been selected as the study area. With the installation of a systematic network of rainfall and water level in this catchment, the flood hydrograph of various storms have been analysed in order to derive the time of travel for storm water flow at respective sub-area outlets. An empirical formulae based on Multiple Regression Technique has been obtained which strongly indicated that one of the travel time components i.e. overland flow time was dependent in its sub-area characteristics. The derived formulae can be used to compute overland flow time of other small urban areas once it been verified with other experimental urban catchment data.