Paved with Gold: The real value of good street design Martin - PowerPoint PPT Presentation

COLIN BUCHANAN Paved with Gold: The real value of good street design Martin Wedderburn Nelson, Thursday 5 th August 2010 Colin Buchanan

Case studies Making the case Prioritising Monitoring investment Demand What works forecasting for walking?

Making the case: A toolkit for valuing walking

Where should I spend my money? Waterview connection Cost: $2.912m Benefit: $3.370m User benefits $28m Wider benefits $0 Revenue BCR: 1.15:1

Where should I spend my money? Town centre enhancement Cost: $15m Benefits: “It’s a good thing to do” BCR: ?? School Travel Plans Cost: $1.5m Benefit: “Probably positive” BCR: ??

How?  Cost savings  Stated preference  Hedonic pricing  Secondary benefits

Measuring quality  Can we measure walkability ?  Quality audits (PERS, community street review)  Numerical measurements, e.g. layout (accessibility, legibility), access to green space

Climate change  Mode shift  Embedded emissions  Adaptation (drainage, shade)

Economic growth  Local connectivity  Clustering  Local property prices  Retail performance

Equality of opportunity

Quality of life and environment

Safety, security and health  Road safety  Physical activity  Mental health  Air quality  Crime

Business case 1: Tottenham Hale

Business case 2: River crossings

Carter Lane Quarter Business case 3:

Prioritising investment: The pedestrian barriers project

Background

Demand and facilities Generally positive Potential ‘High demand & relationship poor facilities’ between demand demand and provision ‘Good facilities & low demand’ Quality of crossing provision

Calibration - demand

Calibration - facilities

Quality of crossings  Generalised journey time:  Horizontal deflection  Vertical deflection  Delays

Predicting pedestrian routes

Findings

Demand forecasting : A recent example

Background  Opportunity Area:  Battersea Power Station  US embassy  High density mixed use developments  Green space  Transport network upgrades

Movement forecasting Our approach:  Link to strategic outputs  Public realm  Layout variables  Activity and movement

Movement forecasting

Calibrated model Movement forecasting Observed

Applications  Scenario testing  Capacity  Crossing design  Security  Retail  Business case inputs

Improving routes : What works for walking?

5 recommendations 1. Getting the basics right 2. Personal security 3. Safe and direct routes 4. Dwell and rest spaces 5. Capacity

1. Getting the basics right Cleanliness Maintenance & Materials

1. Getting the basics right Accessibility Simple but effective innovation

2. Personal security

3. Safe and direct routes  UK design guidance for residential development  New street design philosophy?

3. Safe and direct routes

3. Safe and direct routes – guard rail

3. Safe and direct routes - crossings

4. Dwell and rest spaces

4. Dwell and rest spaces  Natural meeting points  Next to main flow  Facing main flow / activity  Protected back  Adaptable space

5. Capacity – vehicular vs. pedestrian Similar: Different:  Finite capacity  Not always linear  Movement flows  Waiting to cross and stationary  Role of place  Queues can functions block other flows

Level of Service

Micro-simulation

Monitoring: Best practice in data collection

Measuring pedestrian activity What doesn’t count isn’t counted… and what isn’t counted doesn’t count.

Objective “ Establishing a set of international guidelines for the collection, analysis and dissemination of quantitative and qualitative techniques for measuring walking.” (WALK21 conference conclusions Melbourne 2006)

What can we measure?

Pedestrian activity

Pedestrian activity

User characteristics

Behaviour

Perceptions

Case study: Strategic Walks Network Annual performance indicators:  User numbers  User characteristics  Walking patterns  User satisfaction  Awareness and promotion

Discussion