Route choice dynamics after a link restoration

4 (1) studied the bridge choice behavior of commuters before and after a new bridge opened to the 5 public. This bridge replaced the previously collapsed I-35W bridge in the metro area of Minneapolis-St. 6 Paul. The original I-35W bridge collapsed on August 1st 2007, and the replacement bridge opened to the 7 public on September 18th 2008. This study extends (1) by considering explicitly the day-to-day behavior 8 of travelers, and by also considering the previously excluded subjects that are transitioning between 9 bridge alternatives not including the I-35W bridge. The primary results indicate that the subjects react to 10 day-to-day travel times on a specific route according to thresholds. These thresholds help discriminate 11 whether a travel time is within an acceptable margin or not, and travelers may decide to abandon the 12 chosen route depending on the frequency of travel times within acceptable margins. The secondary 13 results indicate that subjects previous experience, and perception of the alternatives also influence their 14 decision to abandon the chosen route. 15