Page 29 - Lecture Notes DCC3113

Equity

To meet travel demand and response for all communities

2.2.2 The purpose of transportation planning

To identify 4
models of
To recall the transportation
process and
purpose of
construction
To define
transportation planning
planning design

To identify
highway
system
component

Figure 2-3: The purpose of transportation planning

The transportation study conducted in the planning process:

a. Origin destination studies
b. Volume studies
c. Spot speed studies
d. Travel time and delay studies
e. Parking studies

a. Origin-destination/direction studies (O-D)

 To show the pattern and nature of daily trips made by the residents
 The main purpose of O-D study is to plan the transportation in urban city especially the type of
land use, road/traffic network and public transportation system.
 Determine the traffic flow – if traffic congestion occurs, a short cut must be plan to give a
comfortable travel to road user.
 Determine whether the existing road system is adequate or not
 Determine the suitable/best position of a bridge or new transport terminal to be constructed.
 Built a transportation models to make sure the transportation planning will be more easier and
also make a prediction about the traffic pattern in the future.
 Method of Origin-Destination (O-D) Study : Road side interviews, License Plate, Return Post
Card Method, Tag on car Method and Home Interview

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