CIE and Roadlighting Steve Jenkins Division 4 Representative

CIE Committees for Roadlighting TC 4-15 Road Lighting Calculations, Test Data and Measurements TC 4-24 Calculation and Measurement of Tunnel Lighting Quality Criteria TC4-26 Systems for Measurement of Photometric Quantities of Road Lighting Installations

CIE Committees for Roadlighting TC4-33 Discomfort Glare in Road Lighting TC4-36 Visibility Design for Road Lighting TC 4-44 Management and Maintenance of Road Lighting TC 4-48 White Light in Road Lighting

CIE 115:2008 Lighting of Roads for Motor and Pedestrian Traffic Since CIE 115:1995, power consumption and environmental aspects have become important. There have been improvements in performance of lamps, luminaires and electronic control gear. Now possible to introduce adaptive lighting for roads with motorised traffic (M), conflict areas ( C) and pedestrian traffic (P)

CIE 115:2008 A structured model is developed for the selection of the appropriate lighting categories based on the luminance or illuminance concept. Then applying, eg, time dependent variables like traffic volume or weather conditions, the model offers the possibility of using an adaptive system

Criteria for Road Lighting Roads for motor traffic – Luminance Conflict areas – Luminance/illuminance concept (Eh) Pedestrian areas – illuminance concept (Eh and Ev and Esc)

Criteria for Road Lighting Conflict Areas: When vehicle streams intersect each other or with pedestrians, cyclists or others. Change in road geometry. Parking areas, toll stations

Lighting Classes Normal Lighting: That lighting category which is appropriate if the same level is to be used throughout the hours of darkness. Adaptive Lighting: Temporal changes in parameters under consideration when selecting Normal class could allow relaxation of Normal levels.

Lighting Areas Motorised traffic, M, ( for drivers of motorised vehicles – luminance ) Conflict areas, C, ( where traffic streams intersect, or run into areas with peds. cyclists, or there is change in geometry or parking areas – luminance or illuminance ) Pedestrian and low speed areas, P, ( for needs of pedestrians – illuminance, H and V)

Lighting Categories (Luminance) CategoryL avge UoUlUl TI%SR M M M M M M60.30 (0.35)

AS/NZS :2005

Conflict Areas (Illuminance) Lighting CategoryEavgeUo (E)TI% High speed TI% low speed C C C C C C

Conflict Areas, (Luminance) M1M2M3M4M5M C0C1C2C3C4C5 Qo=0.05cd/m2/lx R4 (Mastic asphalt) C0C1C2C3C4C5 Qo=0.07cd/m2/lx R3 ( asphaltic concrete ) C0C1C2C3C4C5 Qo=0.09cd/m2/lx R1 (concrete)

Pedestrian and Low speed Areas, (Illuminance) Cat.Avge E Min. Eh Min Ev Min Esc P P P P P P

Pedestrian and Low speed Areas, (Glare) Lighting CategoryTI% P120 P225 P325 P430 P530 P635

Pedestrian and Low speed Areas, (Glare) Max. intensity in cd/klm Glare category70 o and above80 o and above90 o and above G G G G G G <1

Model for M Categories ParameterOptions/WVWV Speed VH/1, H/0.5, Mod/0 1 Traf. Vol. VH/1, H/0.5, Mod/0, Low/-0.5, VL/-1 1 Traf. Comp. Mixed with H non-M/2, Mix/1, Mot only/0 0 Separation No/1, Yes/0 0 Int. density H/1, Mod/0 0 Parked Veh. Present/0.5, Not pres/0 0 Ambient L H/1, Mod/0, Low/-1 1 Vis Guid Poor/0.5, Mod to Good/0 0 Sum (SWV) 3

Model for M Categories Lighting category is M=6 – SWV M=6-3=3 If Category number is not a whole number, use the next lower whole number

Model for C Categories ParameterOptions/WVWV Speed VH/1, H/0.5, Mod/0 0.5 Traf. Vol. VH/1, H/0.5, Mod/0, Low/-0.5, VL/-1 1 Traf, Comp. Mixed with H non-M/2, Mix/1, Mot only/0 2 Separation No/1, Yes/0 1 Ambient L H/1, Mod/0, Low/-1 0 Vis Guid Poor/0.5, Mod to Good/0 0 Sum (SWV) 4.5

Model for C Categories Conflict Area category is C=6 – SWV C= =1.5 If Category is not a whole number, use the next lower whole number, then C=1

Model for P Categories ParameterOptionsWV SpeedLow/1, V. Low/0 1 Traff.Vol.VH/1, H/0.5, Mod/0, Low/-0.5, v. Low/ -1 0 Traff. Comp.P+C+M/2, P+M/1, P+C/1, P/0, C/0 2 Parked vehiclesPres/0.5, Not Pres./0 0.5 Ambient Lum.H/1, Mod/0, Low/-1 0 Facial recognitionNecessary Additional requirements SUM 3.5

Model for P Categories Pedestrian Area Category is: P=6 – WV P = =2.5 If Category is not a whole number, use the next lower whole number, then P=2

Implementing Adaptive Lighting Parameter On – 21:00 21:00 – 24:00 00:00 – 6:00 6:00 - Off Speed 1111 Traff. Vol. 101 Traff. Comp Separation 0000 Int. density 0000 Parked vehicles 0000 Ambient lum Vis. Guidance 0000 SUM 3203 M = 6-SWV M3M4M6M3

Implementing Adaptive Lighting CategoryL avge UoUlUl TI%SR M M M M M M

Implementing Adaptive Lighting Parameter On – 21:00 21:00 – 24:00 00:00 – 6:00 6:00 - Off Speed 2222 Traff. Vol Traff. composition 2112 Separation of carriageways 1111 Ambient Lum. 00 Vis. guidance 0000 SUM 6435 C = 6-SWV C0C2C3C1

Implementing Adaptive Lighting Lighting CategoryEavgeUo (E)TI% High speed TI% low speed C C C C C C

Pedestrian and Low speed Areas, (Illuminance) Cat.Avge E Min. Eh Min Ev Min Esc P P P P P P

Summary Proposes model for Adaptive Lighting Weight important parameters for each time period Sum of the Weighting Values is related to the Lighting category Only the quantitative variables change, the qualitative variables stay at the appropriate Normal lighting levels