From David Bleicher
Tam Dalyell is mistaken in thinking that devices which warn drivers of
traffic jams would reduce congestion and save fuel
(14 October, p 53).
Picture this: you’re driving to work when your device warns you of congestion
on your normal route. You decide to take an alternative route which is a couple
of miles longer, but might be less congested. Unfortunately, most other drivers
on the road heed the warning, and the alternative route soon becomes just as
congested as the direct route. The overall effect is increased congestion,
increased miles travelled and increased fuel use.
The only ways to reduce congestion and save fuel are to build more efficient
cars, provide fast, convenient, efficient public transport, and plan cities that
encourage walking, cycling and use of public transport rather than excessive
driving.
Carrboro, North Carolina
