INFLUENCE OF TRAFFIC AND VEHICULAR CHARACTERISTICS ON LATER SHIFT OF VEHICLES UNDER VARYING ROADWAY AND GEOMETRIC CONDITIONS
DOI:
https://doi.org/10.55766/sujst-2024-06-e05278Keywords:
Vehicle Type, Average Speed, Curve Geometry, Horizontal curves, Lateral Shift, Mixed traffic conditionAbstract
The present study is carried out to analyze the lateral shift of different vehicle types while traversing on a horizontal curve with influence of geometrical elements and average speed of the traffic stream. Four different curves with varying radius of curvature and deflection angles were selected in Warangal city. Different vehicle categories were considered such as two-wheeler, car, and three-wheeler to analyze the lateral shifts in the field. The results of the study showed that two wheelers were more affected by the average speed of the traffic, whereas for cars, the overall width of the road at curve was found to be more significant. Difference of operating speed was found to be more significant for three wheelers. The present research found that the radius of curve, average speed of vehicles and overall width of road at curve were influencing the lateral shifts of vehicles irrespective of the vehicle type and hence these factors can be given more importance during the design of horizontal curve geometry.
References
Aram, A. (2010). Effective safety factors on horizontal curves of two-lane highways. Journal of Applied Science, 10(22):2,814-2,822. https://doi.org/10.3923/jas.2010.2814.2822
Bogenreif, C., Souleyrette, R.R., and Hans, Z. (2012). Identifying and measuring horizontal curves and related effects on highway safety. Journal of Transportation Safety and Security, 4(3):179-192. https://doi.org/10.1080/19439962.2011.646001
Cheng, J.F. and Huang, H.C. (2011). Effects of roadway geometric features on low-speed turning manoeuvres of large vehicles. International Journal of Pavement Research and Technology, 4(6):373-383.
Das, V.R., Jayashree, M., and Rahul, S. (2016). Lateral placement of vehicles on horizontal curves. Transportation Research Procedia, 17:43-51. https://doi.org/10.1016/j.trpro.2016.11.059
Elvik, R. (2013). International transferability of accident modification functions for horizontal curves. Accident Analysis and Prevention, 59:487-496. https://doi.org/10.1016/j.aap.2013.07.010
Garber, N.J. and Ehrhart, A.A. (2000). Effect of speed, flow, and geometric characteristics on crash frequency for two-lane highways. Transportation Research Record, 1717:76-83. https://doi.org/10.3141/1717-10
Haghighi, N., Liu, X.C., Zhang, G., and Porter, R.J. (2018). Impact of roadway geometric features on crash severity on rural two-lane highways. Accident Analysis and Prevention, 111:34-42. https://doi.org/10.1016/j.aap.2017.11.014
Jesna, N.M. and Anjaneyulu, M.V.L.R. (2016). Reliability analysis of horizontal curves on two-lane highways. Transportation Research Procedia, 17:107-115. https://doi.org/10.1016/j.trpro.2016.11.066
Sil, G., Nama, S., Maji, A., and Maurya, A.K. (2019). Effect of horizontal curve geometry on vehicle speed distribution: A four-lane divided highway study. International Journal of Transportation Research, 12(10). https://doi.org/10.1080/19427867.2019.1695562
Oh, H.U. and Mun, S. (2012). Design speed-based reliability index model for roadway safety evaluation. KSCE Journal of Civil Engineering, 16(5):845-854. https://doi.org/10.1007/s12205-012-1469-9
Srikanth, S., Mehar, A., and Parihar, A. (2017). Calibration of VISSIM model for multilane highways using speed-flow curves. The Civil Engineering Journal. 26:303-314. https://doi.org/10.14311/CEJ.2017.03.0026
Srikanth, S. and Mehar, A. (2017). Estimation of equivalency units for vehicle types under mixed traffic conditions: Multiple non-linear regression approach. International Journal of Technology, 8(5). https://doi.org/10.14716/ijtech.v8i5.864
Vayalamkuzhi, P. and Amirthalingam, V. (2016). Influence of geometric design characteristics on safety under heterogeneous traffic flow. Journal of Traffic and Transportation Engineering, 69(6):559-570. https://doi.org/10.1016/j.jtte.2016.05.006
Vyskocilova, L., Bucsuhazy, K., Zuvala, R., Striegler, R., and Ambros, J. (2023). What influences lateral position in horizontal curves. Results in Engineering, 18(101146). https://doi.org/10.1016/j.rineng.2023.101146
Yingxue, Z. (2009). Analysis of the relation between highway horizontal curve and traffic safety. International Conference on Measurement Technology and Mechatronics Automation (ICMTMA 2009, 3), 479-481. https://doi.org/10.1109/ICMTMA.2009.511
Yuan-Yuan, R., Hong-Wei, Z., Xian-Sheng, L., and Xue-Lian, Z. (2012). Study on vehicle track model in road curved section based on vehicle dynamic characteristics. Mathematical Problems in Civil Engineering, 2012(1):818136. https://doi.org/10.1155/2012/818136
Yin, Y., Wen, H., Sun, L., and Hou, W. (2020). Study on the influence of road geometry on vehicle lateral instability. Journal of Advanced Transportation, 1-15. https://doi.org/10.1155/2020/7943739
