North Carolina Crash Report Instruction Manual - NHTSA

_____________________________________________________________________________________________InterchangeAn interchange is a system of interconnecting roadways in conjunction with one or moregrade separations, providing for the movement of traffic between two or more roadways ondifferent levels. The roadway with the highest class is used as the reference for “on-ramp”and “off-ramp” determination. The following diagram illustrates the various rampdesignations.Major Roadway19MinorRoadway172016211515. Off-ramp entryThe approach to an exit ramp serving as a connection from a major roadway to a minorroadway16. Off-ramp properThe length of the ramp between the off-ramp entry and the off-ramp terminal17. Off-ramp terminal on crossroadThe intersection of an exit ramp with the destination route18. Merge lane between on and off ramp19. On-ramp entryAn entrance ramp serving as a connection from a minor roadway to a major roadway20. On-ramp properThe length of the ramp between the on-ramp and the on-ramp terminal21. On-ramp terminal on crossroadThe roadway area where an on-ramp joins the destination route22. Railroad crossing23. Tunnel24. Shared-use paths or trails25. Other* (write in narrative)_____________________________________________________________________________________________Page 62North Carolina DMV-349 Crash Report Instruction Manual