1. Calculating carbon from travel David McGuigan

2. 2 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)

3. 3 Why calculate carbon emissions?  to provide baseline information  to allow for effective travel planning  to allow for monitoring effectiveness of measures by repeat surveys

4. 4 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

5. 5 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

6. 6 Sample of carbon emission rates Mode kg of CO 2 per mile or per passenger mile% of small car Motorcycle0.0249% Bus0.04516% Train0.0249% Taxi0.2382% Petrol, medium, car0.36129% Petrol, large, car0.44157% Diesel, medium, car0.1968%

7. 7 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

8. 8 Example of growth factor calculation SchoolFG/UGPopulationResponsesGrowth Factor M & VMPG1,0301457.10 M & VMUG2,0663166.54 S & EPG1,8513794.88 S & EUG53649195.84 H & SCPG37495626.67 H & SCUG10,9481,2278.92 Total-25,0083,5487.05

9. 9 Sample of carbon emissions by campus Location Weighted Count Average distance (miles) Estimated CO 2 / year (tonnes) Average estimated CO 2 / year per staff member (tonnes) Easter Bush23010.2248.41.08 Pollock Halls of Residence2037.7141.90.70 Western General Hospital35210.2246.90.70 NRIE / QMRI, Little France5818.5359.70.62 Central Area3,8587.11,358.30.35 King’s Buildings / Royal Observatory1,8115.96270.35 Other location906.528.90.32 Moray House / Holyrood Road5727.3169.90.30 Summerhall1084.626.60.25 Other NHS sites763.918.40.24 New College / Mylne's Court6313.210.20.16 Total79447.13,236.300.41

10. 10 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

11. 11 Example Survey