Browsing by Author "Rengarasu, TM"

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Development of driving cycles for Galle
(IEEE, 2018-05) Rupasinghe, H; Rengarasu, TM; Chathuranga, D
Driving cycle construction has become more popular around the world to estimate pollution emission and traffic analysis. This paper presents the traffic based analysis related to performance of B128 and B130 route in Galle, Sri Lanka using basic traffic engineering parameters such as travel time, average and maximum speed, average acceleration and deceleration. So the main objective of this paper is to identify traffic related parameters of above routes at Galle. The driving data was collected using on board measurement method by installing a prototype GPS tracking device in light-duty cars (AXIO, AQUA, FIT, Vitz). The cycle construction was done according to the segment based cycle construction method and roads were segmented considering the major intersections. Driving cycles were constructed for morning peak, noon peak, evening peak and off peak hours in B130 route and off peak hours in B128 route and the travel time, average speed, maximum speed, average acceleration and average deceleration were obtained. According to results, the maximum average speed of 27.53 km/h was obtained at off peak hours and travel time of 892s is taken to travel from Hapugala junction to Galle in noon peak hours. However the maximum speed was obtained at noon peak hours.
item: Conference-Full-text
Estimation of pedestrian walking speeds at controlled cross walks in Sri Lanka - a pilot study
(2013-11-12) Rengarasu, TM; Jayawansa, HN; Perera, GPW
This study aims to develop and test a methodology to extract pedestrian speed data from video footage and to find the pedestrian walking speed Sri Lankans. This study was done in the premises of the Faculty of Engineering, University of Ruhuna. Pedestrians were walking across a measured length was videotaped and the resulting footage was analysed after breaking the footage into frames. For each pedestrian walking event sex of the subject and the starting and ending clock times were recorded. Results showed that sex of the pedestrian did not have a significant effect on the walking speed of the pedestrians. Further, results showed that test subjects walked with a 15th percentile speed of 1.20 m/s. This walking speed is as par with the USA walking speed and faster than the Singaporeans’ walking speed when compared with the speeds reported in the previous studies. However it is noted that this walking speed may go down if we include more test subjects from elderly age category.