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Common values

Chapter Section Common Values
Environment Noise

Annoyance response relationships for road and rail traffic noise

Valuation of changes in noise level

National average household occupancy
Air Quality

Air quality Strategy (AQS) objectives for PM10, NO2

Definition of significant change in air quality
Greenhouse Gases

Carbon to CO2 converter

Carbon emissions per litre of fuel burnt

Social cost per tonne of carbon (SCC)
Economy General

Discount rate

Growth in GDP per capita

Indirect tax correction factor

Non wage labour cost mark up
Values of Time and Operating Costs

Values of working time per person

Values of non-working time per person

Value of time elasticities wrt income

Forecast growth in values of working and non-working time

Vehicle occupancy rates

Percentage change in vehicle occupancy rates over time

Journey purpose splits

Value of time per vehicle

Fuel vehicle operating costs (VOC)

Fuel costs, duty and VAT

Proportion of car fleet using petrol or diesel

Forecast changes in vehicle fuel efficiency

Forecast growth in fuel resource costs

Non-fuel vehicle operating costs (VOC)

Forecast changes in non-fuel vehicle operating costs
Scheme Costs

Optimism bias uplifts for investment costs
Integration Transport Interchange

Public transport values of walk, wait and interchange times
Supporting Analysis

Definition of significant change in air quality
Variable Demand Modelling

Public transport values of walk, wait and interchange times

Conventional walking and cycling speeds

Illustrative parameters for vdm - destination choice

Illustrative parameters for vdm - main mode choice

Various elasticities for realism testing
Major Public Transport Schemes

Expected short and long-term trip kilometre elasticities
Rail

Proportion of revenue increase accrued to private sector

National average diversion factors - change in distance travelled as a percentage of change in rail passenger kilometres

 

Updated: April 2009