Difference between revisions of "901.1 Lighting to be Provided, Operated, and Maintained at State Expense"
m (article construction) |
m (→901.1.2 Basic Lighting at Intersections Including Ramp Terminals at Crossroads: updated per RR 3649) |
||
(4 intermediate revisions by one other user not shown) | |||
Line 1: | Line 1: | ||
− | [[image:901 | + | [[image:901.1.jpg|right|550px]] |
==901.1.1 Interchanges== | ==901.1.1 Interchanges== | ||
Line 5: | Line 5: | ||
Basic lighting along the major road at interchanges is provided if one or more of the following warrants are met: (1) If construction year AADT on the major road exceeds 25,000 for urban conditions, 20,000 for suburban conditions or 10,000 for rural conditions, and the traffic on the crossroad exceeds 1500. (2) If the crash ratio of night to day exceeds 1.25 within the interchange area. (3) If the construction year AADT ramp traffic entering and leaving the major road within the interchange area exceeds 5,000 for urban conditions, 3,000 for suburban conditions or 1,000 for rural conditions and the traffic on the crossroad exceeds 1,500. Guidance is available for the typical [[media:901.1 Ttypical Basic Lighting Plan for Diamond Interchanges.pdf|location of luminaires for basic lighting at diamond interchanges]], [[media:901.2 Typical Basic Lighting Plan for Directional Interchanges.pdf|directional interchanges]] and [[media:901.1.3 (f8-01.3) Typical Basic Lighting Plan for Cloverleaf interchanges.pdf|cloverleaf interchanges]]. | Basic lighting along the major road at interchanges is provided if one or more of the following warrants are met: (1) If construction year AADT on the major road exceeds 25,000 for urban conditions, 20,000 for suburban conditions or 10,000 for rural conditions, and the traffic on the crossroad exceeds 1500. (2) If the crash ratio of night to day exceeds 1.25 within the interchange area. (3) If the construction year AADT ramp traffic entering and leaving the major road within the interchange area exceeds 5,000 for urban conditions, 3,000 for suburban conditions or 1,000 for rural conditions and the traffic on the crossroad exceeds 1,500. Guidance is available for the typical [[media:901.1 Ttypical Basic Lighting Plan for Diamond Interchanges.pdf|location of luminaires for basic lighting at diamond interchanges]], [[media:901.2 Typical Basic Lighting Plan for Directional Interchanges.pdf|directional interchanges]] and [[media:901.1.3 (f8-01.3) Typical Basic Lighting Plan for Cloverleaf interchanges.pdf|cloverleaf interchanges]]. | ||
− | {|style="padding: 0.3em; margin- | + | {|style="padding: 0.3em; margin-right:7px; border:1px solid #a9a9a9; text-align:center; font-size: 95%; background:#f5f5f5" width="160px" align="left" |
|- | |- | ||
|'''Figures''' | |'''Figures''' | ||
|- | |- | ||
− | |[[media:901.1 Ttypical Basic Lighting Plan for Diamond Interchanges.pdf| | + | |[[media:901.1 Ttypical Basic Lighting Plan for Diamond Interchanges.pdf|Fig. 901.1 Typical Basic Lighting Plan for Diamond Interchanges]] |
|- | |- | ||
− | |[[media:901.1.2 (f8-01.2) Typical Basic Lighting Plans for Directional Interchanges.pdf| | + | |[[media:901.1.2 (f8-01.2) Typical Basic Lighting Plans for Directional Interchanges.pdf|Fig. 901.2 Typical Basic Lighting Plan for Directional Interchange]] |
|- | |- | ||
− | |[[media:901.1.3 (f8-01.3) Typical Basic Lighting Plan for Cloverleaf interchanges.pdf| | + | |[[media:901.1.3 (f8-01.3) Typical Basic Lighting Plan for Cloverleaf interchanges.pdf|Fig. 901.3 Typical Basic Lighting Plan for Cloverleaf Interchange]] |
|- | |- | ||
− | |[[media:901.1.2 Typical Basic Lighting Plan.pdf| | + | |[[media:901.1.2 Typical Basic Lighting Plan.pdf|Fig. 901.1.2 Typical Basic Lighting Plan for Signalized Interchange, Channelized Intersections, and Roundabouts Using Divisional Island]] |
|} | |} | ||
==901.1.2 Basic Lighting at Intersections Including Ramp Terminals at Crossroads== | ==901.1.2 Basic Lighting at Intersections Including Ramp Terminals at Crossroads== | ||
− | Basic lighting at intersections is provided if any of the following warrants are met: (1) If the intersection is signalized. (2) If divisional islands are used (refer to Islands | + | Basic lighting at intersections is provided if any of the following warrants are met: (1) If the intersection is signalized. (2) If divisional islands or channelizing islands with non-mountable curbs are used (refer to [[233.2 At-Grade Intersections with Stop and Yield Control#233.2.12 Islands|EPG 233.2.12 Islands]] and [[233.4 At-Grade Intersections with Signal Control#233.4.8 Islands|EPG 233.4.8 Islands]]). (3) If construction year AADT on the crossroad exceeds 15,000 for urban conditions. (4) If basic lighting along the freeway is provided. (5) If the crash ratio of night to day exceeds 1.25. (6) If poor sight distance exists. Guidance for the typical [[media:901.1.2 Typical Basic Lighting Plan.pdf|location of luminaires for basic lighting at channelized intersections]] is available. |
[[Category:901 Lighting|901.01]] | [[Category:901 Lighting|901.01]] |
Latest revision as of 09:09, 8 March 2023
901.1.1 Interchanges
Basic lighting along the major road at interchanges is provided if one or more of the following warrants are met: (1) If construction year AADT on the major road exceeds 25,000 for urban conditions, 20,000 for suburban conditions or 10,000 for rural conditions, and the traffic on the crossroad exceeds 1500. (2) If the crash ratio of night to day exceeds 1.25 within the interchange area. (3) If the construction year AADT ramp traffic entering and leaving the major road within the interchange area exceeds 5,000 for urban conditions, 3,000 for suburban conditions or 1,000 for rural conditions and the traffic on the crossroad exceeds 1,500. Guidance is available for the typical location of luminaires for basic lighting at diamond interchanges, directional interchanges and cloverleaf interchanges.
901.1.2 Basic Lighting at Intersections Including Ramp Terminals at Crossroads
Basic lighting at intersections is provided if any of the following warrants are met: (1) If the intersection is signalized. (2) If divisional islands or channelizing islands with non-mountable curbs are used (refer to EPG 233.2.12 Islands and EPG 233.4.8 Islands). (3) If construction year AADT on the crossroad exceeds 15,000 for urban conditions. (4) If basic lighting along the freeway is provided. (5) If the crash ratio of night to day exceeds 1.25. (6) If poor sight distance exists. Guidance for the typical location of luminaires for basic lighting at channelized intersections is available.