Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1877-0428 © 2012 Published by Elsevier Ltd. Selection and/or peer review under responsibility of the Programme Committee of the Transport Research Arena 2012 doi: 10.1016/j.sbspro.2012.06.1099

Available online at www.sciencedirect.com

© 2012 Published by Elsevier Ltd. Selection and/or peer review under responsibility of the Programme Committee of the Transport Research Arena 2012

1235 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1236 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1237 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1238 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1239 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1240 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1241 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1242 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243

1243 Harri Peltola et al. / Procedia - Social and Behavioral Sciences 48 ( 2012 ) 1234 – 1243