“…Adverse weather conditions have been noted to cause highway capacity reduction (Smith et al, 2004); affect travel decisions regarding service mode, departure time and route choice (Khattak and Palma, 1997;Palma and Rochat, 1999), and impact traffic volumes and flows (Hassan and Barker, 1999;Keay and Simmonds, 2005;Cools et al, 2010a). The effect on travel behavior and thus travel demand has been observed to depend upon the type of weather (Cools et al, 2010b), day of week and trip purpose (Chung et al, 2005), and time of day (Hanbali and Kuemmel, 1993). Strong winds, low temperature, precipitation and winter months have resulted in mode shift from bicycle to car and transit while the reverse was found to be true for high temperatures (Sabir et al, 2008;Sabir et al, 2010).…”