טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentBadran Maa'moon
SubjectEvaluation of Temporary Traffic Control in Day Light
Work Zone
DepartmentDepartment of Civil and Environmental Engineering
Supervisor Professor David Mahalel
Full Thesis text - in Hebrew Full thesis text - Hebrew Version


Abstract

Highway work zones have always constituted a potential for safety hazards, since the conditions of driving through them differ from the usual conditions prevailing on the road. Surely traffic accidents occur in normal driving conditions as well, but the road work conditions definitely creates interference with driving, increasing the potential for occurrence of road accidents.

A significant part of road maintenance works is classified as short term projects. This kind of works necessarily creates a professional challenge of balancing meticulous judgment about the quantity of safety equipment.

The aim of the thesis was to develop a structured procedure for conducting a survey to assess safety at very short term work zones during day light, including forms and a guide to assessment of safety and traffic at highway work zones, within the usual limits of control. This aim is needed to be based on existing literature about what is customary throughout the world, on the current guidelines of the Department of Public Works, and on a field survey of work zones.

Based on the existing literature and a pilot field study, we subsequently developed a checklist form used in a wider survey.

Accordingly, a survey was conducted for analyzing 16 work zones of short-term maintenance projects, during day light, on inter-city highways in Northern Israel. The purpose was to study, based on the field survey, the typical arrangements for temporary traffic control and especially to document the inadequate points existing today. The quality of the procedures for temporary traffic control at these sites was examined on the basis of current professional guidelines in Israel and the world, and also on the basis of professional judgment.

Because of the nature of short time works, it was clear that in these works, extra importance must be given to supervision and inspection of work zone safety rules.

At the end of the process of analyzing the sites, and as a result of the lessons of the field study, a structural procedure was developed for analysis and evaluation of safety in short-term work zones. In the process of examination, a safety index was developed to provide a perspective on the level and quality of the safety and traffic arrangements on the site. The index was determined on the basis of six specific characteristics, six different categories of assessment which are based on the replies from the checklist forms.