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Bus Priority Survey Results

London   1996

The Transportation Research Group (TRG) carried out bus priority field trials in areas of Camden Town and Edgware Road in London as part of the PROMPT project. The Camden network consisted of 11 nodes and 28 links. The Edgware Road site was a linear network consisting of 8 nodes and 2 pelican crossings.

The bus routes were surveyed for the periods 07:00 - 12:00 and 14:00 - 19:00.

Camden Town

Strategy Reduction in bus delay
(sec / bus / link)
Increase in vehicle delay
(sec / veh / link)
Central extensions 0.2 (1%) 1.7
Central extensions + recalls 3.7* (17%) 5.3*
Local extensions 4.2* (19%) 0.4
Local extensions + recalls 4.8* (22%) 5.0*

* values are statistically significant (5% level).
Percentage changes in brackets

The next results (50% saturation) show that greater benefits can be obtained where there is more spare capacity.

Camden Town (Low saturation - average 50%)

Strategy Reduction in bus delay
(sec / bus / link)
Increase in vehicle delay
(sec / veh / link)
Central extensions 4.8* (44%) -0.1
Central extensions + recalls 7.5* (68%) -1.6
Local extensions 7.5* (68%) -1.2
Local extensions + recalls 7.8* (71%) -0.6

 

Edgware Road

Strategy Reduction in bus delay
(sec / bus / link)
Increase in vehicle delay
(sec / veh / link)
Local extensions 2.8* (33%) -0.1
Local extensions + recalls 3.1* (35%) 4.0*

 

Southampton (Lances Hill)   1994/1995

The trial for bus priority was carried out in the Bitterne area of Southampton at the junction of Lances Hill and Maybray King Way. The ROMANSE office of Hampshire County Council carried out the trial. Normal SCOOT operation (with no bus priority) was compared with SCOOT + Central Extensions and Recalls.

Southampton - Lances Hill

Time period Reduction in journey time (%)
Morning peak 60.7
Off peak 3.6
Evening peak 36.8
All periods 41.7

For more information on bus priority click here.
For more information about SCOOT in Southampton click here.

References: