1. Tauranga Transport Models (TTM)
Presentation to PT Committee Aug 2019
Craig Richards (Beca)

2. Contents Model structure Recent upgrades PT module description
Project examples
Future developments

3. TTM Structure Suite of transport models Macro – Meso – Micro
TTSM = Macro (improved)
TTHM = Meso / Micro (new)
TCM = Meso (new)
Vehicles and Cycle trips
PT, Heavy Vehicles, HOV
Tolls, Parking, Fares
2018 to 2063 scenarios

4. TTM v5.11 to v5.12 Old version New version Why?
Private vehicles and trucks only
Cars, Trucks, PT and cycle trips
Need to analyse and evaluate multimodal projects
No consideration of parking issues; capacity & pricing
Considers parking capacity & pricing (esp. CBD)
Relevant constraint and demand management tool, influences mode shift
Basic assessment of tolling/road pricing
Improved ability to consider effects of tolling road pricing
Important issue in Tauranga available to policy makers, influences mode shift
No specific freight modelling (heavy vehicles)
Improved HCV modelling. Modelling of level crossings
Important as Port of Tga is a key land use and trip generator on our network
No specific education trip modelling (‘home based other’)
Specific education trips
More robust model especially for PT trips with high school use

5. PT Module Within the TTSM Bus services and frequencies
Generalised cost of travel
(in vehicle time, access & wait time, fares, parking, tolls)
Public and school buses

6. Key PT Outputs Origin-destination (trips, costs) Travel time
Operation data (volumes, speed)
Service data (passengers, boarding, alighting)
Mapping (accessibility)

7. PT Module Limitations
Uses 2013 Census data – to be recalibrated when 2018 is available
Calibrated against a low and variable base demand. Desirable to review over time
Limited destination data. Recalibrate when new ticket system is embedded
Destination input primarily journey to work, not applicable for school buses. School bus modelling less accurate on a line by line basis at present
Early days, still refining model response to our expectations, e.g. bus lane effects, transfer penalties
Not a full ‘four stage’ model, cannot perform sophisticated multiple redistribution / assignment in certain scenarios

8. PT Blueprint 2016 / 17 Blueprint:
Demand determined external to the model (manual process)
Economic analysis informed by the model
With PT Model:
Routes and frequencies applied in the model
Model simulates demands and provides direct economic outputs
Blueprint forecast growth around 27%
Model forecast growth around 30%

9. TTHM Detailed microsimulation model – receives demands from TTSM
Queues, delay, travel time, speed, weaving, bus lanes, bus delay etc
Can assist in bus lane design, start end points, detailed manoeuvring

10. Project Examples – P8.1 (Interim Findings)
2031 and 2063 with PT (Draft)
‘Baseline’ PT future scenario
Bus lanes, HOV, park and ride, parking charges, station quality
P8.2 ongoing; More services, better bus lane modelling, wider paid parking area
Work in progress in collaboration with TCC, BoPRC, UFTI
DRAFT

11. Other Projects
Te Tumu Structure Plan and PEI – using Programme 8.1 and TTHM
Tauriko Structure Plan Western Corridor – using Programme 8.1
Cameron Road initial review of bus lanes in TTSM and TTHM
15th Avenue Corridor – detailed design informed in TTHM
UFTI – modelling team working with UFTI preparing for modelling of land use and transport scenarios when these are developed

12. Future Model Development
10 year model improvement programme business case
Update for latest Census and Household Travel Survey
New modes, e.g. walking, emodes, freight/commodity, could be included in future
Possibly full four stage model (person trip model) in future

13. Thanks