110 likes | 218 Views
Calculating carbon from travel David McGuigan. Key travel areas. commuting to work/study by staff and students other non-commuting staff and student travel fleet travel (eg estates management, mail runs). Why calculate carbon emissions?. to provide baseline information
E N D
Key travel areas • commuting to work/study by staff and students • other non-commuting staff and student travel • fleet travel (eg estates management, mail runs)
Why calculate carbon emissions? • to provide baseline information • to allow for effective travel planning • to allow for monitoring effectiveness of measures by repeat surveys
How to calculate carbon emissions • survey of staff and students on commuting • disaggregate by campus/department • ask about usual one-way trip to work/study • ask about attendance • ask about travel mode(s) • ask about distances • ask anything else you want
The calculation • calculate one-way carbon emission for each mode used: distance * emission rate • add the emissions for each mode • double for daily emissions • annualise using attendance information
Growthing up • relate responses to populations • calculate growth factor (ideally disaggregated by campus and status of respondent) • add growth factor as a new field to each individual survey record • sum growth factors to create carbon footprints for whole college/university and other disaggregations
Web-based surveys • are less expensive • avoid routeing errors • allow immediate feedback to respondent • encourage better response rates for some survey types/respondents • are more environmentally friendly