PREVALENCE OF TRAFFIC KINEMATIC WAVE AT PRIORITY JUNCTION WITH ENTRY HUMP
DOI:
https://doi.org/10.11113/mjce.v25.15850Keywords:
HY, Mixed carrier, N-hexane isomerization, Pd, Pt, ?-Al2O3 HY, Kinematics, rarefaction, shockwave, hump, volume, speedAbstract
The presence of traffic shockwave on any roadway irrespective of the causation is an indicator of inherent safety problem. Priority T-junction with road hump on one major arm was investigated for kinematic waves. Automatic traffic counters were installed at each lane of the Tjunction for six weeks. Traffic volume, headway, vehicle type and travel speed data were collated and analysed. Results show that right turn movement from the minor will trigger positive traffic shockwave of about 20km/h, whereas the other turning movements are merely subjected to rarefaction waves. The paper concluded that road hump at the major road can be partly held accountable for the prevalence of traffic shockwave associated with right turn movements.References
Ben-Edigbe, J. and Ferguson, N. S. (2009) “Qualitative Road Service Reduction Resulting from Pavement Distress†WIT International Conference on Urban Transport, pp 23-25 July 2009.
Bologna Italy
IDRA Road layout Design (2011) “Blueprint for Iskandar Malaysia†Iskandar Development Regional Authority (IDRA), Johor Bahru, Malaysia ISBN 9 78-967-5626-23-4 pp 15
Jian Lu, Fuquan Pan, and Qiaojun Xiang (2008), Level-of-Safety Service for Safety Performance Evaluation of Highway Intersections, Journal of Transportation Research Board
Vol.2075/2008 pp 24-33
Kimber, R.M, Erica, M and Hollis (1979) Traffic queues and delays at road junctions, Transport and Road research Laboratory report 909, Crowthorne, Berkshire England
Liu, Pan et al (2009) Estimating Capacity of U-Turns at Unsignalised Intersections: Conflicting Traffic Volume, Impedance Effects, and Left-Turn Lane Capacity, Transportation Research
Record: Journal of the Transportation Research Board Vol. 2071 pp 44-51
Newell, G.F. (1993), A simplified theory of kinematic waves in highway traffic, part I: General theory Transportation Research Part B: Methodological Vol. 27, Issue 4, August 1993, pp
–287
Transport Research Laboratory, PICARDY: Priority Intersections Capacity and Delay, UserGuide; Transport Research laboratory TRL, Crowthorne Berkshire, England