Urban transportation is concerned with two separate time horizons. Briefly describe each and provide examples of the types of projects that can be categorized in each horizon.
What will be an ideal response?
The two time horizons that urban transportation planners are concerned
with are short-term projects and long-term projects. The short-term projects are
those that can be implemented within a one- to four-year period. These projects
are designed to provide better management of existing facilities by making them
as efficient as possible. Examples of short-term projects might include re-timing
of traffic signals to improve traffic flow, transit improvements, and car and van
pooling initiatives to reduce traffic congestion.
The second time horizon deals with long-range transportation needs of an
area and identifies the projects to be constructed over a 20- or 25-year period.
Typical long-term projects include the addition of new highway segments,
additional lanes on existing highways, rapid transit systems and extensions, and
access roads to airports.
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