UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Estimating intra-metropolitan journey-to-work CO2 emissions: a multi-modal network approach applied to the London Region 2001

Smith, DA; Serras, J; (2012) Estimating intra-metropolitan journey-to-work CO2 emissions: a multi-modal network approach applied to the London Region 2001. (CASA Working Papers 183). The Bartlett Centre for Advanced Spatial Analysis (CASA), UCL: London, UK. Green open access

[thumbnail of Smith_paper183.pdf]
Preview
Text
Smith_paper183.pdf

Download (1MB) | Preview

Abstract

This paper develops a methodology for estimating network distances and CO2 emissions for UK census ward-level journey-to-work interactions. Improvements are made on existing empirical measures by providing comprehensive intra-metropolitan analysis; increasing network routing accuracy with UK public transport timetable and GPS-based average road speed data; allowing multimodal travel; and developing metrics suitable for travel sustainability analysis. The output unit of CO2 emissions has been selected to enable the integration of mode-choice and travel distance data, and to aid compatibility with integrated assessment applications. The methodology is applied to the case study of the London Region for the year 2001. A very high degree of intra-metropolitan variation is identified in the results. Employment sub-centres diverge in their per-capita CO2 emissions by up to 300%, with specific problems of carbon intensive commuting to major airports and the specialised employment region of the Western Sector. These findings indicate that subcentre travel variation may be intrinsic to polycentric urban structures. The paper discusses means to improve the methodology, in relation to issues of coefficient disaggregation and modelling more complicated multi-modal trips.

Type: Working / discussion paper
Title: Estimating intra-metropolitan journey-to-work CO2 emissions: a multi-modal network approach applied to the London Region 2001
Open access status: An open access version is available from UCL Discovery
Publisher version: https://www.ucl.ac.uk/bartlett/casa/case-studies/2...
Language: English
Keywords: Transport Sustainability, CO2 emissions, Network analysis, GIS, cities
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Centre for Advanced Spatial Analysis
URI: https://discovery.ucl.ac.uk/id/eprint/10127786
Downloads since deposit
37Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item