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Theoretical Study of Safe Braking Line at Signalized Intersection

Abdul Ghafar, Nor Haslinayati (2017) Theoretical Study of Safe Braking Line at Signalized Intersection. Universiti Teknologi PETRONAS. (Submitted)

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Abstract

Signalized intersection is an area where most of the drivers have a difficulty in deciding either to run through the intersection or decelerate their vehicles and stop before the stop line. The goal of this study was therefore to determine the safe braking line at signalized intersection by using the concept of stopping sight distance. The 377 samples of actual approaching speed of vehicles were collected through the site observation at one signalized intersection in Tronoh, Perak. Statistical analysis showed that the observed 15 th and 85th percentile speed at the intersection were 66.2 km/hr and 88.5 km/hr with a mean and standard deviation of 77.5km/h and 9.99km/hr. The ChiSquare goodness-of-fit test was conducted, and the results shows that the distribution of the approaching speed at Tronoh’s intersection was normally distribute with a probability of 14.4%. From the study, it shows that the safe braking line from the stopping line at signalized intersection is between 97m for lower speed limit to 152m for the upper speed limit.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Water and environment - Environmental - Solid waste
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 09 Mar 2022 00:51
Last Modified: 09 Mar 2022 00:51
URI: http://utpedia.utp.edu.my/id/eprint/23006

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