Final answer:
The specific type of collision causing 1,315 deaths in 2012 is not provided; accurate data would be sourced from agencies like the U.S. Census Bureau or NHTSA.
Step-by-step explanation:
The type of collision that resulted in 1,315 deaths in 2012 is not specified in the provided information or the context cited. To find the correct answer, one would typically refer to traffic collision statistics from authoritative sources such as the U.S. Census Bureau or the National Highway Traffic Safety Administration (NHTSA) for the year mentioned. It's important to note that the answer would be based on actual data collected and published by these agencies.