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Ride Sharing
SummaryTaxonomy and descriptionFirst principles assesmentEvidence on performancePolicy contributionComplementary instrumentsReferences

Policy contribution

The contribution to achieving transport policy objectives and alleviating problems made by the examples above is assessed below.

Contribution to key objectives


Objective

Massachusetts

San Francisco

SCHOOLPOOL

Puget Sound Vanpools

Efficiency

-1

-1

1

1

Liveable streets

-1

-1

1

1

Protection of the environment

-1

-1

1

1

Equity and social inclusion

-1

0

0

1

Safety

-1

-1

1

1

Economic growth

-1

-1

0

1

Finance

-1

-1

0

0

1 = Weakest possible positive contribution, 5 = strongest possible positive contribution
-1 = Weakest possible negative contribution -5 = strongest possible negative contribution
0 = No contribution



Contribution to alleviation of key problems

Problem

Massachusetts

San Francisco

SCHOOLPOOL

Puget Sound Vanpools

Congestion-related delay

-1

-1

1

1

Congestion-related unreliability

-1

-1

1

1

Community severance

-1

-1

1

1

Visual intrusion

-1

-1

1

1

Lack of amenity

-1

-1

1

1

Global warming

-1

-1

1

1

Local air pollution

-1

-1

1

1

Noise

-1

-1

1

1

Reduction of green space

-1

-1

1

1

Damage to environmentally sensitive sites

-1

-1

1

1

Poor accessibility for those without a car and those with mobility impairments

-1

-1

1

1

Disproportionate disadvantaging of particular social or geographic groups

-1

-1

1

1

Number, severity and risk of accidents

-1

-1

1

1

Suppression of the potential for economic activity in the area

-1

-1

1

1


1 = Weakest possible positive contribution, 5 = strongest possible positive contribution
-1 = Weakest possible negative contribution -5 = strongest possible negative contribution
0 = No contribution


Appropriate Contexts

Appropriate area-types

Area type

Suitability

City centre

2

Dense inner suburb

3

Medium density outer suburb

2

Less dense outer suburb

1

District centre

2

Corridor

3

Small town

2

Tourist town

2


1 = Least suitable area type 5 = Most suitable area type

Adverse Side Effects
The key adverse side effect resulting from ride sharing is likely to be abstraction from public transport services. In a commercial environment, any substantial reduction in fare box revenues is likely to cause a reduction in service levels. A reduction in service levels is likely to have negative impacts on equity and accessibility. Additionally, if increased car use results from the reduction in public transport services, the negative impacts of car use will increase, and for low income households forced to purchase a car, poverty will become a more serious issue.

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Text edited at the Institute for Transport Studies, University of Leeds, Leeds LS2 9JT