CE416 – PRINCIPLES OF
TRANSPORTATION
ENGINEERING
MODULE 1.
INTRODUCTION TO
TRANSPORTATION
PLANNING
ENGR. KENNETH FAJARDO
Faculty-in-charge
1. Introduction to
Transportation Planning
Agenda
1. Transportation Planning Process
2. Data Collection for Transportation
Planning
3. Types of Traffic that Influence Travel
Demand
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1.1
Transportation Planning Process
Transportation Planning
➢ A well-defined task accomplished before the final set of
information is presented to those who must decide which course
of action is best for a particular place and condition
➢ Process of producing information that can be used by decision
makers
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Used as a guide to facilitate the basic
elements of transportation planning
process
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Inventory of Facilities
▪ Knowing the present performance
of the transportation networks
including the availability of its
facilities is always a good starting
point for transportation planning
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Collect Socio-economic and Land Use
Data
▪ Data includes level of income,
number of members in the
household, number of vehicles in
the households, number of
children, age, highest level of
education achieved.
▪ Land use is used to estimate the
number of trips attracted to each
type of land use (e.g., school,
malls, offices)
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Goals and Objectives
▪ Goals - desired ultimate
achievement of a transportation
plan.
▪ Objectives - more specific
statements that indicate the
means of achieving a goal.
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Identify System Deficiencies and
Opportunities
▪ Identify and prioritize those areas
in transportation system where
problems exist today or where
problem will exist in the future
given the growth of travel.
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Develop and Analyze Alternatives
▪ Development of existing
transportation process can be
done through facility
improvements and by using a
travel demand model.
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Evaluate Alternatives
▪ Evaluate by using different
measure of effectiveness
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Measure of effectiveness (source:
Highway Engineering by Paul
Wright, 1996)
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Implement Plan
▪ The schemes or improvement
programs derived from
transportation planning process
are considered as a major product
of the said planning process
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1.1
Transportation Planning Process
Transportation Planning Flowchart
➢ Monitor System Performance
▪ Continue to examine and evaluate
the performance and conditions
of the transportation system
where improvement is necessary
and opportunity to be utilized
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Questions?
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1.2
Data Collection for Transportation Planning
Data Collection
➢ The quality of data is strictly very important because it provides
reliable inputs to various steps of the planning process
➢ The cost of data collection has the biggest share of budget in any
planning studies
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1.2
Data Collection for Transportation Planning
Various methods for data collection
1. Road-use studies
➢ Obtained through personal interviews from a representative
samples of motorists
2. Pavement-life studies
➢ Transport engineers used pavement-life data for economic
analysis based on anticipating future revenue receipts
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1.2
Data Collection for Transportation Planning
Various methods for data collection
3. Traffic volume studies
➢ Provide transport engineers with essential information on the
number of vehicles using the highway system (ex. Annual
Average Daily Traffic which can be converted into peak hour
volumes).
4. Travel survey
➢ Identify the origin and destination, the purpose and the mode
of travel use for each trip made each day. It also includes
information such as socioeconomic characteristics of the trip
makers.
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1.2
Data Collection for Transportation Planning
Various methods for data collection
5. Household survey
➢ used for determining the number and characteristics of
person trips or auto-driver trips made by residents within the
specified study area
6. Roadside survey
➢ Identify the origin and destination, the purpose and the mode
of travel use for each trip made each day. It also includes
information such as socioeconomic characteristics of the trip
makers.
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1.2
Data Collection for Transportation Planning
Various methods for data collection
7. Modal survey
➢ made by interviewing passengers at terminals or while on
board public transport vehicles.
8. Parking survey
➢ determining the parking habits and requirements of the
motorists in order to be able to relate these factors to the
uses of existing parking facilities.
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1.2
Data Collection for Transportation Planning
Various methods for data collection
9. Goods (freight) movement survey
➢ The impact of goods movement on the functioning of
transportation system is very significant that a good
transportation survey on freight movement involving several
transportation mode is deemed very essential in the overall
planning process.
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Questions?
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1.3
Types of Traffic that Influence Travel Demand
Traffic Types
1. Existing traffic
➢ traffic currently using the existing highway facilities that is to
be improved
2. Normal traffic growth
➢ traffic that can be explained by anticipated growth in the state
or regional population or by area-wide changes in land use.
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1.3
Types of Traffic that Influence Travel Demand
Sample Problem
A multiple regression analysis shows the following relationship for the number of trips
per household.
𝑇 = 0.82 + 1.3𝑃 + 2.1𝐶
where
T = number of trips per household per day
P = number of persons per household
C = number of autos per household
If a particular subdivision contains 250 households with an average of 4 persons and 2
cars for each household, determine the average number of trips per day in that zone.
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1.3
Types of Traffic that Influence Travel Demand
Sample Problem
Step 1. Define the growth model and
available data
Step 2. Calculate the number of trips per
household per day, T
𝑇 = 0.82 + 1.3𝑃 + 2.1𝐶
𝑇 = 0.82 + 1.3𝑃 + 2.1𝐶
= 0.82 + 1.3 × 4 + 2.1 × 2
= 10.22 trips/hh/day
Number of households: 250
Person per household: 4
Cars per household: 2
Step 3. Determine the number of trips
in the entire subdivision,
Total trips = 250 10.22
= 2555 trips/day
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1.3
Types of Traffic that Influence Travel Demand
Traffic Types
3. Diverted traffic
➢ traffic that switches to a new facility from nearby roadways
4. Converted traffic
➢ changes in traffic resulting from change of mode
5. Change of destination traffic
➢ traffic that has changed to different destinations, where such
change is attributable to the attractiveness of the improved
transportation and not to changes in land use
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1.3
Types of Traffic that Influence Travel Demand
Traffic Types
6. Development traffic
➢ traffic due to improvements of adjacent land in addition to the
development that would have taken place for the new or
improved highway that had not been constructed.
7. Induced traffic
➢ traffic that did not previously exist in any form but results
when new or improved transportation facilities are provided.
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Questions?
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BONUS ACTIVITY
Please get your calculator 🧮📱📱
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THANK YOU
Engr. Kenneth Fajardo
johnkenneth.fajardo@g.batstate-u.edu.ph
Batangas State University - Alangilan
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