The effect of clear zone size to driver speed and lateral positioning on the road in UPLB

Date

6-2016

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Perlie P. Velasco

Abstract

The roadside environment plays a vital role in geometric design of road systems as roadside elements affect driver behavior, and poses as a hazard for vehicles driven at high speed and in the event of a run-off-the-road. A study on the clear zone size of the UPLB-IPB road system was conducted to test the effect of varying distances of roadside elements from the road to drivers' choice of speed and positioning of vehicle on the road. Methods devised by Fitzpatrick and colleagues in their study on roadside trees on 2013 was used, namely: field survey, static evaluation (online survey and facilitated survey), and field validation. The study aims to have a quantifiable effect of clear zone size to drivers' choice of speed and positioning on the road therefore improve roadway safety and design. For speed choices, results show from 76 respondents that there was minimal effect of the roadside environment to drivers' choice and actual speeds of drivers in the study area showed no direct relation of clear zone size to speed. Results suggest that drivers would choose high speed regardless of clear zone size in areas with less pedestrian activity. However, drivers were found to place their vehicles further from the edge of the road as the clear zone size decrease and vice versa.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2016 E63 P35

Document Type

Thesis

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