Task: Question Answering
Input (English): Context: According to media reports , the " look and leave " policy only created a chaotic situation , as vehicles lined more than 10 miles of Interstate 45 out of Houston and the city became overwhelmed with returning evacuees . ( The Galveston Daily News reports the policy will be reinstated on Sept. 24 . 
Question: Why is the traffic so heavy on Interstate 45 ?
Output (English): The traffic is from individuals returning home .