Tunnel lighting - THORN Lighting

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Case study 1Chiptchak Mosquee Tunnel, TurkmenistanTunnel typeUrban underpass2 way trafficOne tubeTechnical dataLength: 74mWidth: 24mSpeed limit 80km/hLighting systemAluminium asymmetric GothardWall mounted, tilted 15º3000250020001500Day time lighting layoutThreshold zone Transition zone Interior zone12m250020001500100020x 7823B ST 400W (55klm)10x 7823B ST 250W (33klm)56x 7823B ST 100W (10klm)1000500500Night time lighting layoutThreshold zone Transition zone Interior zone12m150010001000500500Plan schematic showing day time lighting layoutDaylight penetrationInterior zoneTransition zoneThreshold zone47.5m 8m16mExitEntranceTraffic directionFittings kept lit at nightTraffic directionExit Entrance12m12m16m 8m 47.5mThreshold zoneTransition zoneInterior zoneDaylight penetration20x 7823B ST 400W (55klm)10x 7823B ST 250W (33klm)56x 7823B ST 100W (10klm)Fittings kept lit at night16
Case study 2Katerini Tunnel, GreeceThreshold zoneSD = 180m132m48mTransition zone220mInterior zone524mThe national motorway,when completed, will run acrossGreece from Patras to Evzoni,via Athens and Thessaloniki.Three tunnels requiring a fulltunnel lighting system areconstructed in the Katerini area.Maintained%252 100176 8050100 405830200.5 S.D.L thcd/m 2 0 2 4 6 8 10 12 14 16 18 20L tr = L ( 1.9 + t )-1.4 th with L = 100%tht = time in sec.Tunnel descriptionLong motorway tunnel.2 tubes - 3 lanes carriageway.281010854321t. sec.100km/h0m 100m 200m 300m 400m 500mTechnical dataLength: Right tube - 1100mLeft tube - 1100mSpeed limit: 100 km/hTraffic flow: medium less than1,000 vehicles per hour.Stopping distance (SD):180m on wet road.Determination of L th :Right tube entrance:L 20 = 3.500cd/m 2Left tube entrance:L 20 = 5.000cd/m 2Lighting system: counterbeamand symmetricType of fitting: counterbeam andsymmetric fittingsk = L th /L 20 = 0.072 for counterbeam lighting systemand for SD = 180mMaintenance factor: 0.70Right tube detailsThreshold zoneLth to be maintained: L 20 x k =252cd/m 2Length = 180m = SDThreshold zone 1: 132m L th =252cd/m 2 maintainedThreshold zone 2: 48m L th =176 cd/m 2 maintainedTransition zoneThe end of the transition zone isreached when the luminance is 3times the interior luminance levelAs the traffic flow is medium, themaintained level in the interiorzone shall be 10cd/m 2 or 4% ofthe threshold zone level.Length = 220m = given by CIEcurveTransition zone 1:30m L tr = 100cd/m 2 maintainedTransition zone 2:55m L th = 58cd/m 2 maintainedTransition zone 3:135m L th = 28cd/m 2 maintainedInterior zoneLength = 524mL in = 10cd/m 2 maintainedExit zoneLuminance of the exit zone isequal to 5 times the interior zoneluminanceLength = 180mL ex = 50cd/m 2 maintainedLighting fitting arrangementDay timeThreshold and transition zones are lit by counter beam fittings. Interior and exit zones are litby symmetric fittings.EntranceAccesszoneZonescounter beam asymmetricNight timeAll zones are lit by symmetric fittings.EntranceAccesszone180mThresholdzoneLength(m)180mThresholdzonecounter beam asymmetric220mTransitionzoneNo offittingsper tube220mTransitionzoneDay time524mInterior zone524mInterior zoneasymmetric beamCounter beam400W 250Wasymmetric beam180mExit zone180mExit zoneLane 1Lane 2Lane 3Symmetric150W 250WThreshold 1 180 276 276Transition 220 104 40 64Interior right 524 256 196* 60Exit 180 86 30* 56*common to day time and night timeLane 1Lane 2Lane 3ExitExitZonesLength(m)No offittingsper tubeNight timeCounter beam400W 250WSymmetric150W 250WThreshold 1 180 32 32Transition 220 36 36Interior right 524 88 88Exit 180 30 3017
Page 1 and 2: Tunnel lighting
Page 4 and 5: Tunnel lighting criteriaGood tunnel
Page 6 and 7: Types of tunnel lightingTunnel road
Page 8: 8Tunnel lighting must allow vehicle
Page 11 and 12: Controlling tunnel lightingFor the
Page 13 and 14: TitanTitus• Sturdy construction
Page 15: Steel Gothard7830 series One piece
Page 20: Lighting people and placesThorn Lig

Tunnel lighting - THORN Lighting

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