Civil Engineering Reference
In-Depth Information
Table 24.1 Congestion relief strategies related to urban area population
Relief strategy
Urban area population
1 Very
small
<100,000
2 Small
100,000
3 Medium
500,000
4
Large
1.5
5 Very
large
over 3
million
-
-
1.5 million
500,000
3
million
-
Roadway capacity enhancement
Better use of existing streets and
highways
X
X
X
X
X
trafc engineering and
access management
—
Capacity expansion
—
new and
improved freeways and arterials
improved local connectivity
X
X
X
X
X
Managed lanes/variable road
pricing
Very
small
Limited
X
Roadway demand management
Parking management
park-and-
ride CBD parking limits/pricing
—
Limited
X
X
Congestion pricing
X
X
Transit improvements (including
new rapid transit lines)
Limited
X
X
X
Lane management
Limited
X
X
X
Incident event management
X
X
X
X
X
Source
Estimated
Operational strategies are relatively easy to implement when they are the
responsibility on a single agency, they are relatively easy to implement. Where the
owners of the transportation infrastructure are agencies typically controlled by
different units of government, coordination of congestion management strategies
among these units may be time consuming and not always easily achievable
—
especially when the limited funding available for this purpose may not be trans-
ferrable between agencies.
Congestion relief actions are location speci
c. They should be keyed to the
needs, opportunities, attitudes and resources of each urban area. Relevant consid-
erations include:
The location, type, duration and extent of congestion
Likely future growth
Physical and operational de
ciencies of streets and highways
The character of development patterns and their transportation connectivity
The number, size, complexity and attitudes of the various governmental juris-
dictions and public agencies involved
