11.3.5 Data Input and Parameters
The general inputs needed to perform traffic operational and safety analysis for interchanges are below.
- Peak hour TMC for all the approaches;
- Distance between intersections of an interchange;
- Number of lanes and lane assignment;
- Heavy vehicle percentages;
- Turning movement speeds and speed limits;
- Pedestrian/bicyclist volumes;
- Number of lanes crossed by a pedestrian/bicyclist;
- Crash records for the preceding three to five years; and
- OD information to discount U-turn movements or properly account for the depending on configuration