Travel demand models
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Travel demand models Anders Karlström Dept of Transport Science Division of Transport and Location Analysis (TLA)
description
Travel demand models. Anders Karlström Dept of Transport Science Division of Transport and Location Analysis (TLA). Where are we ?. Remember , there are four exam categories Demand modelling with Logit Assignment LUTI Models and appraisal. Content Demand. Demand ( contd ) - PowerPoint PPT Presentation
Transcript of Travel demand models
Travel demand models
Anders KarlströmDept of Transport Science
Division of Transport and Location Analysis (TLA)
Where are we?
Remember, there are four exam categories1. Demand modelling with Logit2. Assignment3. LUTI4. Models and appraisal
Content Demand
1. Demand (contd)Logit model (repetition)Nested logit modelTrip generation, Trip distribution and modal splitLocational choice modelling (Nov 27)(car ownership)
Assignment
2. AssignmentDec 4
Content 3. LUTI
Content Modelling and Appraisal
4. Modelling and AppraisalOther models than Logit
Car ownership modellingScheduling models (Mon Dec 9)
Appraisal: What is it? What is it, really? Critique and defense (more on Dec 16)
On appraisalvW ch 14 (contd)
Consumer surplusValuation of time, what is it? Relation to GDP?Trip purposes, non-linearities?RP vs SP
SCBA vs MCA
Travel demand models
• So-called four step models• Trip generation• Trip distribution• Modal split• Assignment
• Land-use?
Definition and notation
• Trip matrix• Generalized cost of travel• Value of time
Definition and notations
Transit terminology• In-vehicle time• Access and egress time• Waiting time
Singly and doubly constrained models
(OW 5.3-5.4)
Example nested logit
Nested logit, remember theRed bus - Blue bus ?
3 destinations
The nested logit modelKnown as the hierarchical logit (HL) in the book OW
Variables
Standard model
Work tour model
Trip purposes
Non work tours
Extensions
