Design Manual for Road and Bridges (DMRB) Design Standards TD 50/04. Competency 4. Apply DfT and other technical advice and guidance.

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1 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

2 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

3 The Geometric Layout of Signal-Controlled Junctions and Signalised Roundabouts TD 50/04 3

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5 TAL 1/06 General Principles of Traffic Control by Lights Signals TAL 5/05 Pedestrian Facilities at Signal-Controlled Junctions 5

6 Visibility to a signal heads at a traffic signal junction TD 50/04 6

7 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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11 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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13 Footway width 2 metres min Cycleway width 2 metres min Shared cycleway/footway width 2m but 3m preferred Segregated cycleway/footway width m footway cycleway 13

14 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

15 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

16 Traffic TAL 1/06 (part 4 of 4) Pedestrians TAL 5/05 (part 4 of 4) A E B 16

17 Intergreen from Phase A to E A E 3 2 Intergreen = 6 secs Pedestrian to Traffic Pedestrian Traffic 2 Intergreen = 10 secs 2 second blackout Warwickshire Pedestrian Traffic 2 Intergreen = 8 secs 17

18 TR 2581A Cycle Time 7 seconds 4 seconds 7 seconds 33 seconds Minimum cycle times Maximum cycle times 18

19 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

20 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

21 Trixi Mirrors Traffic Signal Poles 21

22 2.1m 4.32m 1.0m to 1.01m 2.4m on Cycle Path Traffic Signal Control Course Design Standards TD 50/04 Gafoor Din IEng FIHE Principal Engineer 22