TAG Unit 3.5.5: Impacts on Pedestrians, Cyclists and Others

June 2003

1. Impacts on pedestrians, cyclists and others
1.1 Introduction
2. References
3. Document Provenance

1. Impacts on pedestrians, cyclists and others

1.1 Introduction

1.1.1 Where they are not explicitly quantified in the modelling approach and thus included in the estimates of monetised user benefits and disbenefits, impacts on pedestrians, cyclists and others should be appraised using the following method, which will provide a qualitative score on a seven point scale.

1.1.2 The method is based on the advice on assessment provided in DMRB Volume 11 Section 3 Part 8. The approach identified there involves developing a schedule, for each important route, of changes in typical (pedestrian and other) journey lengths (times and distances) and likely changes in travel patterns, with an estimate of the number of people affected in each case.

1.1.3 The approach discussed here is based on an assessment of the total change in 'person-minutes' of the journey times of pedestrians and other non-motorised travellers. Any impact on pedestrians, cyclists or others on changes in the amenity of the journey should be addressed under the journey ambience sub-objective. Thus, in some circumstances, it may be possible to identify longer journey times, say arising from the provision of cycle lanes, but accompanied by improved amenity which should be recorded under the journey ambience sub-objective.

1.1.4 The approach is as follows. Referring to the worksheet provided below, the following information needs to be provided:

• numbers of pedestrians, cyclists and equestrians and others in row a;
• changes in journey time in minutes in row b;

1.1.5 In some circumstances, quantified information may not be readily available. Where this is the case, analysts should use their judgement to make an assessment of whether the numbers affected are low, moderate or high and whether the changes in journey times are small, moderate or large, using the guidelines given below. The results of these assessments should be recorded in the worksheet.

1.1.6 Where more than one important route is affected, it may be convenient to restructure the worksheet as a spreadsheet, representing each route as a separate row, thus allowing the overall net impact to be estimated.

1.1.7 Using the information in the worksheet, the Assessment score may be obtained using the following guidelines. Define the changes in journey times as: small (less than one minute), moderate (between one and two minutes, say) and large (greater than three minutes, say) and the numbers of travellers affected as: low (less than 200 in total), moderate (between 200 and 1000 say) and high (greater than 1000, say). Then the assessment can then be based on the following matrix of impacts where Beneficial impacts occur if journey times are reduced or Adverse impacts if journey times are increased.

Travellers affected
Journey time changes	Low	Moderate	High
Small
Moderate
Large

Worksheet 1: Economy: Pedestrians, Cyclists and Others

2. References

Highways Agency Design Manual for Roads and Bridges (DMRB)

3. Document Provenance

This Transport Analysis Guidance (TAG) Unit is based on Appendix G of Guidance on the Methodology for Multi-Modal Studies Volume 2 (DETR, 2000).
Technical queries and comments on this TAG Unit should be referred to:
Integrated Transport Economic Appraisal (ITEA) Division
Department for Transport
Zone 3/08 Great Minster House
76 Marsham Street
London
SW1P 4DR
itea@dft.gsi.gov.uk
Tel 020 7944 6176
Fax 020 7944 2198