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43 Chapter 8 â Safety Rest Areas Current Guide The current AASHTO guide discusses safety rest areas and gives recommendations for lighting levels within the rest area, entrance roads, and parking areas. Requirements for minimizing glare are also included in the guide. Additional Considerations for LED Sources The lighting levels with safety rest areas would not be modified based on the use of LEDs. Some considerations that might be useful include. â¢ Consider adaptive lighting at these facilities with dimming occurring when activity is reduced. Dimming could occur using the lighting level for major activities to minor activities. Roadway and gore areas should be dimmed to the same levels as the mainline roadway lighting. Consider motion sensors for public areas off the roadway. The use of dimming, however, must be specific to the area, DOT preferences, expected use, and security concerns for the area. â¢ Various CCT sources could be used to delineate areas within the rest area (e.g., vending, pedestrian paths) to assist in identification and wayfinding. â¢ Glare should be limited to the mainline roadway so that the driver on the mainline does not see an increase in the veiling luminance ratio prescribed in Chapter 3. Key Issues â¢ Consider adaptive lighting for safety rest areas if deemed appropriate by the owner. â¢ Consider pedestrian and vehicle flow as part of the design. â¢ Assess and design to mitigate any glare to mainline roadway.