© The Institution of Engineering and Technology
London has a long history of successful schemes for bus priority at traffic signals. Recently, Transport for London (TfL) has procured a modern automatic vehicle location (AVL) system for bus fleet management, passenger information and bus priority. The new system is known as iBUS and is based on global positioning system (GPS) and supporting technologies for bus location. The system eliminates the need for on-street hardware for detecting buses and provides more flexibility and opportunity for using bus detectors. However, bus location based on this system is less accurate than location based on fixed infrastructure (e.g. beacons) and could result in reduced benefits from bus priority. This paper first summarises how bus priority at traffic signals works within iBUS, and then explores the effects of GPS locational errors on bus priority benefits. This is followed by a discussion of opportunities available in the context of iBUS to build an even more efficient and beneficial bus priority system by taking advantage of its cost-effective multiple detection capabilities. The paper is based on various studies carried out by the Transportation Research Group (TRG) at the University of Southampton for TfL.
References
-
-
1)
-
Hounsell, N.B., McLeod, F.N., Shrestha, B.P.: `Bus priority at traffic signals: investigating the options', Proc. 12th Int. Conf. Road Traffic Information and Control, April 2004, IEE London.
-
2)
-
Hounsell, N.B., Ishtiaq, S., McLeod, F.N.: `Journey time prediction for bus priority at traffic signals', Proc. 24th PTRC European Transport Forum: Transportation Management and Safety, 1996, London, 416.
-
3)
-
Shrestha, B.P., Hounsell, N.B., McLeod, F.N.: `Simulating advanced bus priority strategies at traffic signals', Proc. 10th World Conf. Transport Research, July 2004, Istanbul.
-
4)
-
N.B. Hounsell ,
B.P. Shrestha
.
AVL based Bus priority architectures: a review of London example.
Eur. J. Transp. Infrastruct. Res.
,
3 ,
13 -
29
-
5)
-
Bowen, T., Head, J.R., Hounsell, N.B., Palmer, S., Shrestha, B.P.: `Expanding the boundaries of bus priority at traffic signals in London', Proc. 6th European Congress on Intelligent Transport Systems and services, 2007, Aalborg.
-
6)
-
D. Ibrahim
.
Improving accuracy for GPS vehicle navigation systems in London.
Traffic Eng. Control
,
6 ,
228 -
232
-
7)
-
Shrestha, B.P.: `Simulating advanced bus priority strategies at traffic signals', 2003, PhD, University of Southampton.
-
8)
-
Department for Transport: The Valuation of Time Savings' in ‘Design Manual for Roads and Bridges, Volume 13: The COBA Manual, Part 2 Chapter 1’. The Stationary Office, London, May 2002.
-
9)
-
Hounsell, N.B., McLeod, F.N.: `Automatic vehicle location and bus priority: the London system', Selected Proc. 8th World Conf. Transport Research, 1999, 2, p. 279–292.
-
10)
-
PRISCILLA: ‘Public transport priority: State of the art review’. Bus Priority Strategies and Impact Scenarios Development on a Large Urban Area - Deliverable 2, February 2002, http://www.trg.soton.ac.uk/priscilla/deliverables.htm, accessed December 2007.
-
11)
-
N.B. Hounsell ,
B.P. Shrestha ,
F.N. McLeod ,
S. Palmer ,
T. Bowen ,
J.R. Head
.
Using global positioning system for bus priority in London: traffic signals close to bus stops.
IET Intell. Transp. Syst.
,
2 ,
131 -
137
-
12)
-
Gillam, W.J., Wright, D.A.: `An innovative approach to real-time bus information and signal priority', Proc. 10th Int. Conf. Road Traffic Information and Control, IEE, 2000, London.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-its_20070060
Related content
content/journals/10.1049/iet-its_20070060
pub_keyword,iet_inspecKeyword,pub_concept
6
6