AITPM presentation

1. Traffic and Parking Generation
The impact on development
AITPM National Conference 2014
Paul Morris

3. Development Assessment
• Parking Demands
• Off-street supply
• On-Street impacts
• Shared/Compatible Uses
• Multiple-use discounts
• Development Plan
• Specific rates
• Generic definitions
• Empirical Data
• SA Guides
• RTA Guide
• SA Surveys
• GTA Database

4. Development Assessment
• Traffic generation
• Internal operation
• Access
• External impacts
• Development Plans
• Objectives
• Principles
• Empirical Data
• RTA Guide
• SA Surveys
• GTA Database

5. Access – a matter of degrees
• Linked to traffic generation
• Appropriate Access?
• Unsignalised or signalised
• Restricted turning movements
• Use of existing local streets
• Left turn auxiliary lanes
• Warrants
• Left turn lanes

6. Access – a matter of degrees
• Austroads Guides
Determining the Need for Auxiliary Lanes
The need for deceleration turn lanes cannot be stated definitively in all instances
because of the many factors to be considered, such as speeds, traffic volumes,
capacity, type of road, service provided, traffic control and crash history.
Guide to Road Design – Part 4A: Unsignalised and Signalised Intersections

7. Access – a matter of degrees
Figure 4.9: Warrants for turn treatments on the major road at unsignalised intersections

8. Access – a matter of degrees
• External Infrastructure Costs
• Short Taper - $30K
• Standard Deceleration Lane - $150K
• Extra costs for land acquisition, services, design, etc
• Developments are marginal
• Use appropriate analysis
• Justify needs not just broad warrant

9. Parking – The BIG Issue
• Parking Demands
• Off-street supply
• On-Street impacts
• Shared/Compatible Uses
• Multiple-use discounts
• Development Plan

10. Parking – Development Plan Rates
3
3.5
4
4.5
5
5.5
6
6.5
7
Shop
5.5
7.0

11. Parking Demands
• Impacts on Parking Rates
• Extended Shopping Hours
• Changes in Shopping Trends (On-line, Entertainment)
• Increased Retail Floor Space
• Multiple Use Discounts

12. Parking
5.2
4.8
5.1
5.2
4.6
5.1
Spaces per 100 square metres
Gross Leasable Floor Space

13. Parking
3.8
3.0
3.8
3.6
3.6
3.1
5.2
4.8
5.1
5.2
4.6
5.1
Spaces per 100 square metres
Gross Leasable Floor Space

15. They should
build more
parking......


18. Only 3.9 per
100sqm...WOW
Hmmm...
130 spaces
OMG...$650K
to build
RUK....
$3.7m..!!

20. WOW....
85 spaces
available
$2.5m

21. Conclusions
• Development Plans
• Review parking rates
• Lower shopping centre rates
• Traffic Warrants
• Review the use of warrants
• Consider the actual need from analysis
• Consider the cost
• Impact on feasibility

22. Thank You