The contributions reported here reflect an amalgamation of the case studies
presented in the previous section.
| Objective |
Contribution |
Comment |
| 
|
 |
Improved fleet utilisation, navigational aids and
monitoring of traffic black spots has helped reduce off-route vehicle
mileage, idling and delivery times. Monitoring of driving style
and vehicle performance also brings major benefits. In the long-term
trip generation may erode such benefits. |
| 
|
 |
Reduces off-route vehicle mileage and idling. In
the long-term trip generation may erode such benefits. |
| 
|
? |
Reduces off-route vehicle mileage and idling, leading
to reductions in both noise and air pollution. In the long-term
trip generation may erode such benefits. |
| 
|
|
There was no discernable impact on equity and social
inclusion. |
| 
|
|
Reduction in off-route mileage and an improvement
in driving style will improve safety. |
| 
|
 |
The improvement in fleet efficiency may stimulate
growth in the overall economy. |
| 
|
|
The gains in fleet efficiency
are very likely to outweigh the implementation and operational costs. |
| Problem |
Scale of contribution |
Comment |
|
Congestion-related delay |
|
Improved fleet utilisation,
navigational aids and monitoring of traffic black spots has helped
reduce off-route vehicle mileage. In turn this should benefit other
road users who will experience a reduction in traffic and congestion
levels. In the long-term trip generation may erode such benefits. |
|
Congestion-related unreliability |
|
The reduction in off-route
vehicle mileage and delivery time, particularly during the am and
pm peak will help improve reliability for other road users. In the
long-term trip generation may erode such benefits. |
|
Community severance |
|
Through reduction
of off-route mileage. In the long-term trip generation may erode
such benefits. |
|
Visual intrusion |
|
Through reduction
of off-route mileage. In the long-term trip generation may erode
such benefits. |
|
Lack of amenity |
|
Through reduction
of off-route mileage. In the long-term trip generation may erode
such benefits. |
|
Global warming |
|
Reduction
empty running and idling will help reduce traffic-related CO2 emissions.
In the long-term trip generation may erode such benefits. |
|
Local air pollution |
|
Reduction
in off-route vehicle mileage and idling will help reduce emissions
of NOx, particulates and other local pollutants. |
|
Noise |
|
Reduction
in off-route vehicle mileage and idling will help reduce traffic
volumes. |
|
Reduction of green space |
|
No evidence
given. |
|
Damage to environmentally sensitive sites |
|
No evidence
given. |
|
Poor accessibility for those without a car and those with mobility
impairments |
|
No impact. |
|
Disproportionate disadvantaging of particular social or geographic
groups |
|
No impact. |
|
Number, severity and risk of accidents |
|
No evidence
given but reduction in off-route vehicle mileage, better vehicle
maintenance and improvement in driving style are likely to have
reduced the number of accidents and their severity. |
|
Suppression of the potential for economic activity in the area
|
|
No evidence
given but increased freight transport efficiency may help generate
overall economic growth. |
|
|
|
|
Reduced cost for road hauliers may in the long-term encourage further
mode shift to road from rail. It may also encourage an increase in overall
number and length of freight journeys.
Text edited at the Institute for Transport Studies,
University of Leeds, Leeds LS2 9JT
