Design Standards TD 50/04 Gafoor Din IEng FIHE Principal Engineer Competency 4 Apply DfT and other technical advice and guidance Competency 23 Design a traffic signals scheme (including facilities for pedestrians or cyclists) to operate in VA and FT mode, plus one other mode e.g. UTC Design Manual for Road and Bridges (DMRB) 1
The Code of Practice for Traffic Control & Information Systems TA84/06 TA 84/06 Volume 8, Section 1, Part 2. CODE OF PRACTICE FOR TRAFFIC CONTROL AND INFORMATION SYSTEMS 2
The Geometric Layout of Signal-Controlled Junctions and Signalised Roundabouts TD 50/04 3
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TAL 1/06 General Principles of Traffic Control by Lights Signals www.gov.uk/government/collections/traffic-advisory-leaflets TAL 5/05 Pedestrian Facilities at Signal-Controlled Junctions 5
Visibility to a signal heads at a traffic signal junction TD 50/04 6
Visibility to a signal heads at a traffic signal junction Signal head positions 120m Example for 40mph SSD is 120m 7
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TAL 2/03 Signal-control at junctions on High-Speed Roads When the 85% tile approach speeds exceeds 65mph it is recommended that traffic signals should not be installed Right turns should be controlled separately when the 85% tile approach speeds exceeds 45mph Duplicate primary signals Stop width 300 mm. 11
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Footway width 2 metres min Cycleway width 2 metres min Shared cycleway/footway width 2m but 3m preferred Segregated cycleway/footway width - 1.5 m footway + 1.5 cycleway 13
High Friction Surfacing (HFS) TD 50/04 (DMRB 6.2.3) HD 36/06 (DMRB 7.5.1) Polished Stone Value (PSV) The Manual of Contract Documents for Highway Works (MCHW) Volume 3 - Highway Construction Details G Series 14
The Manual of Contract Documents for Highway Works (MCHW) Volume 3 - Highway Construction Details G Series The Manual of Contract Documents for Highway Works (MCHW) Volume 3 - Highway Construction Details G Series The Manual of Contract Documents for Highway Works (MCHW) Volume 3 - Highway Construction Details G Series 15
Traffic TAL 1/06 (part 4 of 4) Pedestrians TAL 5/05 (part 4 of 4) A E B 16
Intergreen from Phase A to E 0 1 2 3 4 5 6 A E 3 2 Intergreen = 6 secs Pedestrian to Traffic 0 1 2 3 4 5 6 7 8 9 10 Pedestrian Traffic 2 Intergreen = 10 secs 2 second blackout Warwickshire 0 1 2 3 4 5 6 7 8 Pedestrian Traffic 2 Intergreen = 8 secs 17
TR 2581A Cycle Time 7 seconds 4 seconds 7 seconds 33 seconds Minimum cycle times Maximum cycle times 18
Signal head positions Close Associated Secondary Method of Control Manual Fixed Time VA (Vehicle Actuated) CLF (Cableless Linking Facility) UTC/SCOOT MOVA Detection Type LTN 2/95 19
Improve traffic flow Distance calculated for individual sites Can also be used at high speed locations instead of x, y z and speed discrimination / assessment loops Increase intergreen by 1 sec Detection MOVA loops 20
Trixi Mirrors Traffic Signal Poles 21
2.1m 4.32m 1.0m to 1.01m 2.4m on Cycle Path www.theihe.org Traffic Signal Control Course Design Standards TD 50/04 Gafoor Din IEng FIHE Principal Engineer 22