Currently the MAR Intersection Table only contains 'regular' at grade intersections. It does not include intersections where there is an overpass or underpass or ramps (such as ramps off of INTERSTATE 295). This is a shortcoming of the MAR and is being remedied. Situations occur at these location also and they need to be locatable using the MAR.
There are two phases for adding underpasses, overpasses and ramps to the Intersection Table:
- Add Underpasses (ex: FIRTH STERLING AVENUE SE UNDER INTERSTATE 295)
- Add Overpasses (ex: INTERSTATE 295 NORTHBOUND OVER FIRTH STERLING AVENUE SE)
- Add Ramps (ex: NORTHBOUND NORTH CAPITOL STREET NE AND RAMP FROM EASTBOUND IRVING STREET NE)