Pavement marking technology has advanced to a degree that allows for the use of large multi-color symbols to be on the pavement as a means of providing drivers with another source ofinformation to help them make good navigation decisions.The objective of this research was to identify appropriate in-lane pavement markingcharacteristics for use near freeway interchanges. Two laptop-based surveys were conducted toevaluated driver comprehension, recognition time, and preference for different designs andapplications.Based on the information obtained from these surveys, researchers developed the followingrecommendations for what information should be placed as in-lane pavement markings near aninterchange.·Arrow and shield markings should be used in combination.·Simple single lane exits (particularly traditional lane drop right exits) only need pavementmarking symbols to be placed in the exit lane.·If in-lane pavement markings are used at complex interchanges (e.g., optional lanes,multi-lane exits, etc.), they should be applied to all lanes.·Optional lane pavement markings should provide the same basic information as otherlanes at that interchange (i.e., show both highway shields and an option arrow).·Do not stagger lane markings. Install same symbols in a single line.·The use of cardinal directions should be limited.
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