A presentation by Darryl Patterson of Arup, delivered at National AITPM Conference, WA Presentations 20 August 2015

1. AITPM National Conference
Brisbane
29 – 31 July 2015
AITPM Western Australia
Perth
20th August 2015
Strategic to Simulation - A
Pedestrian Perspective

2. 2
Outline of Presentation
• The current approach
• Approach taken in other transport modes
• Background to the PPM and why it was needed
• Applications of and simulation modelling exercises from the
PPM
• Learnings and enhancements to the PPM including interfaces
with other models

3. 3
The Current Approach to Pedestrian Modelling
• Focused on bespoke demand development external to the model
process
• Demand development based on observed pedestrian data within
input from scheduling/timetabling. Some linkages to real time
models for arrival/departure profiles
• Generally may not cover the entire pedestrian trip to another
transport mode

4. 4
Approach in other Transport Modes
• Road based transport the most progressed approach to transport
modelling
• Public Transport can adopt a similar approach
Strategic
Model
• Land Use, Macro network inputs
• Outputs: Choice of Modes, Distribution
Mesoscopic
Model
• Detailed Intersection inputs
• Outputs: Detailed Local Route Choice
Simulation
Model
• Detail road network geometry and elements
• Outputs: Individual vehicle operation/interaction

5. 5
Background to the Perth CBD and PPM

6. 6
Background to the Perth CBD and PPM
Development
Area
Hotels Retail
(sqm)
Office
(sqm)
Dwellings
(no.)
Proportion
of 2015
CBD
Perth Citylink 1 24,000 220,000 1,650 33%
increase in
existing
residential
Elizabeth
Quay
1 20,203 76,083 1,033 20%
increase in
existing
residential

7. 7
Background to the Perth CBD and PPM
• Three Step Model – Generation,
Distribution and “Strategic”
Assignment
• Emme network and macro framework
• Fruin adapted speed flow function
focus on width of path being the key
capacity constraint
• Assignment using two user classes
• Signalised intersection delay modelled
at strategic level

8. 8
Background to the Perth CBD and PPM
• Land use inputs for floor area and car parking (public). These can
be aligned with other strategic models (eg STEM)
• Public transport inputs – Rail services on platform basis, CAT
services, major bus stations. Light rail in the future
• Pedestrian networks including permeability through buildings
• Light Rail and CAT services updated – Light Rail based on a
number of alignments

9. 9
Applications of and simulation modelling
exercises from the PPM
• Perth CityLink and Station
Access
• Extending to include the
Esplanade Station
• Perth Arena modelling
• Informing Perth Parking Policy
• Perth Busport (S)
• Long Term Perth Station
Planning
• Future - Transit Mall Planning
(S)?

10. 10
Learnings and enhancements to the PPM including
interfaces with other models
• Data!
- OD data of pedestrian trips
- Allow more comprehensive validation
• Speed flow and generalised cost in the PPM
- Amenity factors
- Representation of delay at road crossings
- Attractiveness of vertical transitions
• Interaction with other modal models – (city wide 4 step models)
- Is there a need for consistency?
- Integration with other modal models for inputs?

11. 11
Learnings and enhancements to the PPM including
interfaces with other models
• Route choice differences macro and micro considering the detail
of simulation
- Positioning of cordon locations
• Understanding and replicating capacity constraints such as fare
gates and open spaces (eg malls)

12. 12
Questions and commentary?