Delay and queue lengths at stop/go control during half-width construction
Date
2015-12
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
South African Institution of Civil Engineering
Abstract
ENGLISH ABSTRACT: It is common practice in South Africa that road reseal projects, road reconstruction projects or road upgrade projects on two-lane, two-way roads are constructed in half-widths, resulting in a
situation where traffic on the remaining roadway is reduced to one-way operation.
There is currently no method for determining a suitable length of work zone for half-width
construction based on traffic volumes, and also no method for determining waiting time for the
vehicle in the front of the stationary queue at the STOP/GO control, and of the back-of-queue
position at such a work zone.
An Excel-based calculation sheet for determining the back-of-queue position and the
maximum waiting time, was developed. This was used to develop design tables, graphs and
equations that can be used by designers and contractors to estimate the back-of-queue position
and maximum waiting time.
Based on the conclusions of this paper and the fact that this project was largely based on
literature studies of traffic conditions not related to work zones for half-width construction, the
main recommendation of the study is that all the input parameters which were investigated
need to be verified and calibrated specifically for work zones for half-width construction.
AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar
AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar
Description
CITATION: Venter, L. & Bester, C. J. 2015. Delay and queue lengths at stop/go control during half-width construction. Journal of the South African Institution of Civil Engineering, 57(4):2-11, doi:10.17159/2309-8775/2015/v57n4a1.
The original publication is available at http://www.scielo.org.za
The original publication is available at http://www.scielo.org.za
Keywords
Roads -- Design and construction, Travel delays, Roads -- Maintenance and repair
Citation
Venter, L. & Bester, C. J. 2015. Delay and queue lengths at stop/go control during half-width construction. Journal of the South African Institution of Civil Engineering, 57(4):2-11, doi:10.17159/2309-8775/2015/v57n4a1.