The impact of average speed over distance (ASOD) systems on speeding patterns along the R61
Date
2014-12-10
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
ENGLISH ABSTRACT: Speeding is considered to be a major contributing
cause of road fatalities in Sub-Saharan Africa and South Africa
in particular. The minibus taxi industry is a vibrant yet partly
informal sector of public transport in South Africa, which
has been associated with speed-related road fatalities. Although
countermeasures have been implemented to address speeding,
they have not led to significant reduction in road fatalities and
adherence to legal speed limits. Among the countermeasures
deployed on some highways is the Average Speed Over Distance
(ASOD) system which uses cameras to enforce speed limits. In
this paper, historical probe data is used to evaluate the impact
of the ASOD system on speed profiles of passenger vehicles.
The data also consists of speed, time and location information
gathered by navigation and fleet management devices that were
installed in minibus taxis. The evaluation is based on spatial
differentiation (the impact on the enforcement site with ASOD
versus the control site without ASOD) and time differentiation
(the impact before and during ASOD enforcement). For passenger
vehicles, the results show that the presence of ASOD systems
caused a reduction in mean speeds and ensured compliance with
speed limits at enforcement and control sites. On the other hand,
the system appears to have no influence on minibus taxis, with
high, yet similar average speeds measured in the enforcement and
control sites during ASOD enforcement.
AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar
AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar
Description
Please cite as follows:
Ebot Eno Akpa, N. A., Booysen, M. J. & Sinclair, M. 2014. The impact of average speed over distance (ASOD) systems on speeding patterns along the R61, in Proceedings of the First International Conference on the use of Mobile Informations and Communication Technology (ICT) in Africa UMICTA 2014, 9-10 December 2014, STIAS Conference Centre, Stellenbosch: Stellenbosch University, Department of Electrical & Electronic Engineering, South Africa, ISBN: 978-0-7972-1533-7.
The conference is available at http://mtn.sun.ac.za/conference2014/
See also the record http://hdl.handle.net/10019.1/95703
Ebot Eno Akpa, N. A., Booysen, M. J. & Sinclair, M. 2014. The impact of average speed over distance (ASOD) systems on speeding patterns along the R61, in Proceedings of the First International Conference on the use of Mobile Informations and Communication Technology (ICT) in Africa UMICTA 2014, 9-10 December 2014, STIAS Conference Centre, Stellenbosch: Stellenbosch University, Department of Electrical & Electronic Engineering, South Africa, ISBN: 978-0-7972-1533-7.
The conference is available at http://mtn.sun.ac.za/conference2014/
See also the record http://hdl.handle.net/10019.1/95703
Keywords
average speed over distance (ASOD), Averaging method (Differential equations) -- Speed, Motor vehicles -- Speed limits