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85 A P P E N D I X A Survey Results 1 Does your Transportation Agency/Department have a Design Manual or policy design standards specifically for LED Roadway Lighting? 2 Does your Transportation Agency/Department have construction Technical Specifications specifically for LED Roadway Lighting? Yes Yes No No (September 2017)
86 Solid-State Roadway Lighting Design 3 Which industry-recognized Roadway Lighting guidelines does your Agency/Department primarily follow? 4 As part of your LED Roadway Lighting Design Manual or Technical Specifications for either new design or retrofits, does your agency allow for reduced illumination (adaptive lighting) design criteria? Yes No AASHTO Roadway Lighting Design Guide In-House criteria ANSI/IES RP-8 Roadway Lighting
Survey Results 87 5 Are all new installations using LED luminaires? 6 Does your Agency/Department use other design modifications when applying LED lighting designs (e.g., occupancy sensors, curfew dimming, tune-able white, etc.)? Yes No All with exception of partial replacement Yes, but other options are ok Most but HPS is still allowed Yes but there are exceptions LED is primary but other sources ok Provisional Preapproved list All LED, HID if requested by locals Yes No
88 Solid-State Roadway Lighting Design 7 Please indicate what Correlated Color Temperature (CCT) your Agency/Department currently specifies for LED Roadway lighting. Check all that apply and/or write in the other box. 8 Does your Transportation Agency/Department currently have any LED Roadway Lighting projects in design, in construction, or installed and fully operational? Check all that apply.
Survey Results 89 9 Approximately how much of your roadway lighting system is currently LED? 10 Does your Agency/Department require lighting calculations to be submitted as part of design reviews? Yes No Sometimes, depends on size of the project
90 Solid-State Roadway Lighting Design 11 Does your Agency/Department verify lighting levels as part of construction completion before acceptance? 12 If a spot replacement of a luminaire is required (due to knockdown, failure, etc.), is the fixture typically replaced in kind (same source, HPS for HPS) or replaced with a new LED fixture (mixed source, HPS for LED)? Yes No Sometimes We will typically allow for mixed sources in the case of light failure replacements We will typically replace in-kind, keeping the sources consistent for the area Replacing with LED is an option depending upon funding availability and current inventory We allowed both. At least one maintenance contract has LED conventional fixtures We are just now going to mixed source Only LED allowed to install. No more HPS
Survey Results 91 13 If there was a National Design Manual and Technical Specification available specifically tailored to LED Roadway Lighting would your Agency/Department consider using it? Yes No
