12 Transportation · 12.1 Transportation planning
12.1.6 Travel demand: four-stage model and modal split
The four-stage model forecasts future travel in four steps: how many trips each zone makes (generation), where they go (distribution), by which mode (modal split) and on which route (assignment).
- MPSC ATP
- Standard level
- 8 min read
- Full course
Key terms
- four-stage model
- trip generation
- trip production
- trip attraction
- regression
- category analysis
- trip distribution
- growth factor
- Fratar
- Furness
- gravity model
- friction factor
- modal split
- trip-end model
- trip-interchange model
- diversion curve
- logit model
- captive rider
- choice rider
- traffic assignment
- all-or-nothing
- capacity restraint
- user equilibrium
- Wardrop
- BPR function
- comprehensive mobility plan
What this note covers
- Core factsFoundation
- ExplainedStandard
- DeeperAdvanced
- Mains writingMains writing
- Common trapsFoundation
- Quick revisionFoundation
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