Signal 81 Narrative: Describing the roadway: Example: The 100 block of Southside is a two-way roadway with one lane traveling north and one lane traveling south. The 9400 block of Socorro Rd. is a two-way roadway with one lane traveling east and one lane traveling west. Unit 01 which was traveling south bound at the 100 block of Southside Rd, failed to stop at the stop sign, and collided into unit 02. At the time of the collision, unit 02 was traveling east bound at the 9400 block of Socorro See more