Civil Engineering Reference
In-Depth Information
Fig. 20.1 Pedestrian plaza at Macy
'
s and Herald Square, Manhattan. Source Reference [
5
]
20.5.2 Rationing of Road Space
Road space rationing has succeeded in reducing severe congestion in many of the
world
s megacities in Europe and Latin America. But they have not been applied/
adopted in US and Canadian cities where congestion levels are not as severe, and
where residential land use is more spread out and cannot support frequent transit
service.
'
20.5.3 Truck Restrictions
The congestion reduction bene
ts from truck use restrictions are generally limited
to the restricted zones/routes of their application. They can be only achieved if their
negative residual effects on other activities can be mitigated. For example:
prohibiting trucks from using congested streets in city centers reduces conges-
tion
—
but it may constrain essential commercial vehicle access to building
restricting peak-period truck use of freeways could reduce freeway congestion
—
but it could add trucks to local streets
