Field experiments to evaluate and control light tower glare in nighttime work zones

Odeh, I; El-Rayes, K and Liu, L (2009) Field experiments to evaluate and control light tower glare in nighttime work zones. Journal of Construction Engineering and Management, 135(9), pp. 911-919. ISSN 0733-9364

Abstract

An increasing volume of highway repair and construction work is being performed during the off-peak nighttime hours to mitigate the impact of construction-related daytime traffic congestions and shorten the duration of construction operations. The utilization and placement of light towers to illuminate the work zone in this type of construction can cause harmful levels of glare for both drivers and construction workers. This paper presents the results of field experiments which were conducted to (1) study the levels of glare and lighting performance generated by light towers in and around nighttime work zones; (2) analyze the combined impact of the light tower set up parameters including its height as well as its aiming and rotation angles on glare and lighting performance; and (3) provide practical recommendations to reduce and control lighting glare in and around nighttime work zones. The results of these experiments confirm that the set up of light towers has a significant impact on glare and therefore it should be carefully designed and executed on nighttime highway construction projects to ensure the safety of the traveling public as well as construction workers.

Item Type: Article
Uncontrolled Keywords: construction management; highway and road construction; light, artificial; nighttime construction
Index terms: construction work, construction worker, repair, construction operation, duration, traffic congestion, road construction, placement, experiment, glare, highway construction
Subjects: maintenance engineering, practitioner, operations management, data collection methods, civil engineering, project controls, construction operations, building performance, transportation engineering, management
Topics: Project Management, Roles and Professions, Site Management, Research Practice, Engineering Principles, Human Resources, Time Control, Design Practice, Business Strategy
Descriptive scope: 3 PCE

N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here