Which abbreviation indicates direction of travel while heading towards the west?

The abbreviation that indicates direction of travel while heading towards the west is "WB," which stands for "westbound." In the context of traffic and navigation, direction abbreviations are standardized to help convey critical information quickly and efficiently.

"WB" is commonly used in road signs, navigation systems, and law enforcement communications to clearly indicate that a vehicle is traveling in a westerly direction. This is particularly important for coordination in traffic management, accident reporting, and providing directions.

Other abbreviations such as "EB," "NB," and "SB" refer to eastbound, northbound, and southbound travel, respectively. Each of these designations serves a specific purpose for different travel directions but does not relate to westbound travel. Thus, "WB" is the correct choice for indicating movement towards the west.