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Psychological Responses of Motorcar Drivers to Flashing Amber Lights at Signalised T-Intersections

Authors:

K. Galappaththi ,

IFS R & D International (Pvt.) Ltd., Colombo, LK
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O. K. Herath,

University of Moratuwa, Moratuwa, LK
About O. K.
Department of Transport and Logistics Management
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Y. M. Bandara,

University of Moratuwa, Moratuwa, LK
About Y. M.
Department of Transport and Logistics Management
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M. M. M. Shaja

NSBM Green University, Homagama, LK
About M. M. M.
Department of Operations and Logistics
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Abstract

The accurate and timely decision making of drivers is vital to ensuring public safety and reaching the destination in time. This paper presents a detailed comparison of the expectation of regulatory bodies in implementing flashing amber lights and explores the actual driver responses to flashing amber lights at a signalised T-intersection by taking speed variation as a proxy for their decision making.

 

A survey was conducted at a signalised T-intersection during the operation of flashing amber lights to measure the speed variation. Time-distance and speed gun techniques were used to collect speed data of motor cars.

 

Results reflect those drivers show only a marginal response to flashing amber lights. Therefore, the intention of regulatory bodies that vehicles maintaining lower speed at a T-intersection with flashing amber lights was not satisfactorily fulfilled. The marginal response of drivers to flashing amber lights can be a leading cause of accidents occurring in signalised T-intersections at odd (night) hours.

How to Cite: Galappaththi, K., Herath, O. K., Bandara, Y. M., & Shaja, M. M. M. (2021). Psychological Responses of Motorcar Drivers to Flashing Amber Lights at Signalised T-Intersections. Journal of South Asian Logistics and Transport, 1(2), 19–33. DOI: http://doi.org/10.4038/jsalt.v1i2.32
Published on 24 Sep 2021.
Peer Reviewed

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