Upon moving away from the DIRECTION OF TRAVEL field you will be presented with a pop-up window asking you to select the street this motor vehicle was on at the time of the crash.
From the drop-down, select the street that this vehicle was on at the time of the crash and then click on the OK button.
The options for this drop-down are populated based on the values in the ON STREET OR HIGHWAY and FROM INTERSECTION WITH STREET/NEAREST STREET, BRIDGE, etc. fields.