Auditory intelligent speed adaptation for long–distance informal public transport in South Africa
Date
2016-04
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract
ENGLISH ABSTRACT: Informal transport refers to the collective passenger
road transport industry with little or no regulatory control of
its operations, usually characterised by unplanned and ad-hoc
service delivery. The notoriously dangerous informal transport
industry in South Africa – dominated by minibus taxis – has
been shown to disregard the posted speed limit on long-distance
trips. Not only do they frequently exceed the differentiated speed
limit imposed on minibus taxis, but also the speed limit imposed
on normal passenger vehicles. This paper evaluates the impact
of an auditory Intelligent Speed Adaptation (ISA) intervention,
applied at various intensity levels, on the speeding behaviour of
this seemingly intransigent mode of transport. The experiment
evaluates the behaviour on the R61 between Beaufort West
and Aberdeen. We evaluate the speeding distributions, speeding
frequencies, speed percentiles, mean speeds, and the statistical
relevance of key metrics. We find that the auditory intervention
has a clear impact on speeding behaviour, both when applied
at an audible level that can be drowned out by a radio, and
even greater impact at a loud level. The impact on speeding
is significant, with speeding frequency (both time and distance)
reducing by over 20 percentage points.
AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar
AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar
Description
CITATION: Ebot Eno Akpa, N. A., Booysen, M. J. & Sinclair, M. 2016. Auditory intelligent speed adaptation for long–distance informal public transport in South Africa. IEEE ITS Magazine, 8(2):53-64, doi:10.1109/MITS.2016.2533979.
The original publication is available at http://ieeexplore.ieee.org
The original publication is available at http://ieeexplore.ieee.org
Keywords
Intelligent speed adaptation, Minibuses, Public transportation -- Informal sector (Economics), Speed zoning (Traffic engineering), Speed regulations
Citation
Ebot Eno Akpa, N. A., Booysen, M. J. & Sinclair, M. 2016. Auditory intelligent speed adaptation for long–distance informal public transport in South Africa. IEEE ITS Magazine, 8(2):53-64, doi:10.1109/MITS.2016.2533979.