Intermediate Sight Distance evaluator uses Intermediate Sight Distance = 2*Stopping Sight Distance to evaluate the Intermediate Sight Distance, The Intermediate Sight Distance formula is defined as twice SSD. Overtaking sight distance (OSD) for safe overtaking operation. Head light sight distance is the distance visible to a driver during night driving under the illumination of head lights. Safe sight distance to enter into an intersection. Intermediate Sight Distance is denoted by ISD symbol.
How to evaluate Intermediate Sight Distance using this online evaluator? To use this online evaluator for Intermediate Sight Distance, enter Stopping Sight Distance (SSD) and hit the calculate button.