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Four Step Model Mode Choice

The document discusses factors influencing mode choice in transportation, including journey characteristics and transport facility attributes. It outlines different types of modal split models, such as trip-end, trip-interchange, and aggregate/disaggregate models, along with the Binary and Multinomial Logit Models for analyzing travel behavior. Additionally, it provides sample problems for calculating trips and fares based on varying conditions.

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36 views16 pages

Four Step Model Mode Choice

The document discusses factors influencing mode choice in transportation, including journey characteristics and transport facility attributes. It outlines different types of modal split models, such as trip-end, trip-interchange, and aggregate/disaggregate models, along with the Binary and Multinomial Logit Models for analyzing travel behavior. Additionally, it provides sample problems for calculating trips and fares based on varying conditions.

Uploaded by

marlolandicho28
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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MODE CHOICE / MODAL SPLIT

TRANSPORTATION ENGINEERING (CE123) ENGR. JOMAR S. RAMOS


Factors influencing the choice of mode
2. Characteristics of the journey:
Mode choice is strongly influenced by:
(a) The trip purpose; for example, the journey to work is
normally easier to undertake by public transport than
other journeys because of its regularity and the
adjustment possible in the long run;
(b) Time of the day when the journey is
undertaken;
(c) Late trips are more difficult to accommodate
by public transport.
Factors influencing the choice of mode
3. Characteristics of the transport facility:

Quantitative factors are:


(a) relative travel time: in-vehicle, waiting and walking
times by each mode;
(b) relative monetary costs (fares, fuel and direct costs);
(c) availability and cost of parking
Factors influencing the choice of mode

Qualitative factors which are less easy to measure are:

(a) comfort and convenience;


(b) reliability and regularity;
(c) protection, security;
Types of modal split models

1. Trip-end modal split models

- The advantage is that these models could be very


accurate in the short run, if public transport is
available and there is little congestion
- Limitation is that they are insensitive to policy
decisions
Types of modal split models

2. Trip-interchange modal split models

- post-distribution model
- include the characteristics of the journey and that of
the alternative modes available to undertake them
- beneficial for long term modeling
Types of modal split models
3. Aggregate and disaggregate models

Aggregate Models - based on zonal and inter-zonal


information

Disaggregate Models - based on household or individual


data.
Binary Logit Model
Binary Logit Model
Binary Logit Model

This functional form is called logit, where cij is


called the generalized cost and β is the parameter
Logit Function for calibration. The graph shows the proportion of
trips by mode 1 (T 1 ij/Tij ) against cost difference.
SAMPLE PROBLEMS
Let the number of trips from zone i to zone j is 5000, and two modes are
available which has the characteristics given in below. Compute the trips
made by mode bus, and the fare that is collected from the mode bus. If the
fare of the bus is reduced to 6, then find the fare collected.
SAMPLE PROBLEMS

Let the number of trips from zone i to zone j is 5000, and two modes are
available which has the characteristics given in below. Compute the trips
made by mode bus, and the fare that is collected from the mode bus. If the
fare of the bus is reduced to 6, then find the fare collected.
Multinomial Logit Model
SAMPLE PROBLEMS
Let the number of trips from zone i to zone j is 5000, and two modes are
available which has the characteristics given in below. Compute the trips
made by the three modes and the fare required to travel by each mode.

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