Temporary Traffic Management Design Guidance

257 Pages·2017·21.31 MB·English

by  Aidan Creagh

Draft | November 2017
www.dttas.ie

Temporary Traffic Management
Design Guidance

Third Edition | November 2017 Page | 1
Temporary Traffic Management Design Guidance

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Temporary Traffic Management Design Guidance

Temporary Traffic Management Design Guidance

REVISION CONTROL

Revision Title
First Temporary Traffic Management Design Guidance
Draft
Status Prepared By Checked By Approved By Date
Working Working
Revision 01 DTTAS Nov 2017
Group Group
This document is a revision and update to “Guidance for the
Description Control and Management of Traffic at Roads Works 2nd
Edition 2010.”
Temporary Traffic Management Design Guidance

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Temporary Traffic Management Design Guidance

TABLE OF CONTENTS
PART 0
0.1 INTRODUCTION ........................................................................................ 3
0.1.1 Foreword ............................................................................................................................ 3
0.1.2 Objectives ........................................................................................................................... 3
0.1.3 Scope .................................................................................................................................. 4
0.1.4 Document Structure .......................................................................................................... 5
0.1.5 Roles, Responsibilities and Competence ....................................................................... 6
0.1.6 Glossary of Terms ............................................................................................................. 9
0.2 ROADS AND ROAD TRAFFIC LEGAL BACKGROUND........................ 13
0.2.1 Roads and Road Traffic Acts ......................................................................................... 13
0.2.2 Road Traffic Signs ........................................................................................................... 13
0.2.3 Road User Responsibilities ............................................................................................ 15
0.2.4 Role of the Gardaí ............................................................................................................ 16
0.2.5 Road Authority Powers ................................................................................................... 16
0.2.5.1 Road Opening Licence ............................................................................................. 16
0.2.5.2 Statutory Undertakers .............................................................................................. 16
0.2.5.3 Power of Road Authorities to Issue Directions ......................................................... 17
0.2.5.4 Road Closures .......................................................................................................... 17
0.2.6 National Roads................................................................................................................. 18
0.2.6.1 Roadworks Notification ............................................................................................. 18
0.2.6.2 Road Space Booking ................................................................................................ 18
0.3 HEALTH AND SAFETY ........................................................................... 19
0.3.1 Introduction ...................................................................................................................... 19
0.3.2 Risk Management ............................................................................................................ 20
0.3.2.1 The Risk Management Process ............................................................................... 20
0.3.2.2 General Principles of Prevention Schedule 3 (SHWW Act 2005) ............................ 21
0.3.2.3 Risk Management of Non Construction Related Activities ....................................... 21
0.3.3 Duties and Responsibilities ............................................................................................ 22
0.3.3.1 The Client ................................................................................................................. 23
0.3.3.2 The Project Supervisor Design Process (PSDP) ..................................................... 23
0.3.3.3 The Designer ............................................................................................................ 24
0.3.3.4 The Project Supervisor Construction Process (PSCS) ............................................ 24
0.3.3.5 The Contractor ......................................................................................................... 25
0.3.3.6 The Temporary Traffic Operations Supervisor (TTOS) ............................................ 28
0.3.3.7 The CSCS Health and Safety at Roadworks Cardholder ........................................ 28
0.3.3.8 The Employee .......................................................................................................... 28
0.3.4 Safety Documentation ..................................................................................................... 29
0.3.4.1 Safety Statement ...................................................................................................... 29
0.3.4.2 Safe Systems of Work Plans and Method Statements ............................................ 31
0.3.4.3 Preliminary Safety and Health Plan ......................................................................... 32
0.3.4.4 Construction Stage Safety and Health Plan ............................................................. 32
0.3.4.5 Safety File................................................................................................................. 33

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Contents
0.3.5 Traffic Management Process .......................................................................................... 33
0.3.5.1 Traffic Management Design Process ....................................................................... 34
0.3.5.2 Construction Process ............................................................................................... 36

0.4 TRAFFIC MANAGEMENT DESIGN PROCESS ...................................... 38
0.4.1 TTM Planning ................................................................................................................... 38
0.4.1.1 General Principles ................................................................................................... 38
0.4.1.2 Design Brief .............................................................................................................. 39
0.4.1.3 Local Authority Requirements .................................................................................. 39
0.4.1.4 Emergency Services ................................................................................................ 40
0.4.1.5 Statutory Undertakers .............................................................................................. 40
0.4.1.6 Site Information ........................................................................................................ 41
0.4.1.7 Site Inspection .......................................................................................................... 41
0.4.1.8 Programming ............................................................................................................ 42
0.4.1.9 Traffic Disruption ...................................................................................................... 42
0.4.1.10 Basic Space Consideration ...................................................................................... 42
0.4.1.11 Pedestrians, Cyclists and Other Vulnerable Road Users ........................................ 43
0.4.1.12 Works Access / Egress and Site Vehicle Routes ..................................................... 43
0.4.1.13 Vehicle Recovery ..................................................................................................... 44
0.4.1.14 Emergency Traffic Management .............................................................................. 44
0.4.1.15 Incident Management ............................................................................................... 44
0.4.2 TTM Elements .................................................................................................................. 45
0.4.2.1 Signing ...................................................................................................................... 45
0.4.2.2 VMS .......................................................................................................................... 46
0.4.2.3 Tapers ...................................................................................................................... 48
0.4.2.4 Safety Zones ............................................................................................................ 48
0.4.2.5 Temporary Lane Delineation .................................................................................... 49
0.4.2.6 Lighting ..................................................................................................................... 49
0.4.2.7 Barriers ..................................................................................................................... 50
0.4.2.8 Temporary Surfaces ................................................................................................. 56
0.4.3 TTM Criteria ...................................................................................................................... 58
0.4.3.1 Road Classification ................................................................................................... 58
0.4.3.2 Roadworks Types ..................................................................................................... 59
0.4.3.3 Traffic Flow Conditions ............................................................................................. 60
0.4.3.4 Lane Widths.............................................................................................................. 61
0.4.3.5 Sightline and Visibility Requirements ....................................................................... 62
0.4.3.6 Design Speed for TTM ............................................................................................. 63
0.4.3.7 Works off roadway .................................................................................................... 65
0.4.4 Detailed Design ................................................................................................................ 66
0.4.4.1 Temporary Traffic Management Job Information Pack ............................................ 66
0.4.4.2 Use of Standard Plans ............................................................................................. 69
0.4.4.3 Post Design Review ................................................................................................. 69
0.4.4.4 TTM Auditing ............................................................................................................ 70
0.5 STATIC OPERATIONS ............................................................................ 72
0.5.1 Introduction ...................................................................................................................... 72
0.5.2 Traffic Control Methods .................................................................................................. 73
0.5.2.1 Two Way ................................................................................................................... 73
0.5.2.2 Give and Take .......................................................................................................... 74
0.5.2.3 Priority ...................................................................................................................... 75
0.5.2.4 Stop / Go .................................................................................................................. 76
0.5.2.5 Temporary Traffic Signals ........................................................................................ 78
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0.5.2.6 All Stop ..................................................................................................................... 79
0.5.2.7 Marshalling ............................................................................................................... 79
0.5.2.8 Convoy Working ....................................................................................................... 79
0.5.2.9 Road Closures and Diversions ................................................................................. 81
0.6 JUNCTIONS AND ROUNDABOUTS ....................................................... 83
0.6.1 Introduction ...................................................................................................................... 83
0.6.2 Junctions .......................................................................................................................... 83
0.6.3 Roundabouts .................................................................................................................... 87
0.7 ROAD LINING AND ROAD SIGN WORKS ............................................. 91
0.7.1 Road Lining ...................................................................................................................... 91
0.7.2 Road Sign Works ............................................................................................................. 92
0.8 NIGHTIME WORKS ................................................................................. 94
PART 1
1.1 INTRODUCTION ...................................................................................... 97
1.1.1 Design Parameter Tables ................................................................................................ 98
1.2 URBAN DESIGN PROCESS ................................................................. 103
1.2.1 Introduction .................................................................................................................... 103
1.2.2 Vulnerable Road Users ................................................................................................. 104
1.2.2.1 Pedestrians............................................................................................................. 104
1.2.2.2 Cyclists ................................................................................................................... 110
1.2.2.3 Other Vulnerable Road Users ................................................................................ 117
1.2.3 Restricted Geometry ..................................................................................................... 117
1.2.4 Heavy Traffic .................................................................................................................. 118
1.2.5 Vehicle and Vulnerable Road User Manoeuvres ........................................................ 118
1.2.6 Access to Premises ....................................................................................................... 119
1.2.7 Public Transport Interface ............................................................................................ 120
1.3 MULTI-LANE STREETS ........................................................................ 121
1.3.1 Two-Way 3 Lane Street ................................................................................................. 121
1.3.2 Two-Way 4 Lane Street ................................................................................................. 122
1.3.3 One-Way 2/3 Lane Street .............................................................................................. 123
1.3.4 Tidal Flow Operations ................................................................................................... 124
1.4 DUAL CARRIAGEWAYS (LEVEL 1(IV) ROADS) ................................. 126
1.4.1 Introduction .................................................................................................................... 126
1.4.2 Lane 1 Closure ............................................................................................................... 126
1.4.3 Lane 3 Closure ............................................................................................................... 127
1.4.4 Closure of two lanes ..................................................................................................... 127
1.4.5 Treatment of Entrances ................................................................................................ 128
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1.4.6 Sign Location ................................................................................................................. 128
1.4.7 Cycle Tracks ................................................................................................................... 129
1.4.8 Right-turning Lanes / Junctions .................................................................................. 129
1.5 SIGNALISED JUNCTIONS .................................................................... 130
1.6 MANAGEMENT OF WORKS IN URBAN AREAS ................................. 131
1.6.1 Hoardings and Scaffolding ........................................................................................... 131
1.6.2 Construction Skips ........................................................................................................ 131
PART 2
2.1 INTRODUCTION .................................................................................... 135
2.1.1 Minor Roads ................................................................................................................... 135
2.1.1.1 Detours ................................................................................................................... 135
2.1.1.2 Low Speed Low Volume Roads ............................................................................. 135
2.2 STATIC OPERATIONS .......................................................................... 136
2.2.1 Introduction .................................................................................................................... 136
2.2.2 Design Parameters ........................................................................................................ 136
2.2.3 Lateral Safety Zones ..................................................................................................... 139
2.3 SEMI STATIC OPERATIONS ................................................................ 141
2.3.1 Introduction and tables – Typical applications .......................................................... 141
2.3.2 Unobstructed Road width > 2.5m ................................................................................ 142
2.3.3 Minor Roads Unobstructed Road width < 2.5m ......................................................... 144
2.3.4 SSO over 2km in length (Road lining) ......................................................................... 146
2.4 NON TYPICAL ROAD SECTIONS ........................................................ 147
2.4.1 Overtaking Lanes........................................................................................................... 147
2.4.2 Transition Sections ....................................................................................................... 149
2.4.3 Wide Single Carriageways ............................................................................................ 149
2.5 SPECIFIC OPERATIONS ...................................................................... 150
2.5.1 Surface Dressing ........................................................................................................... 152
2.5.2 Road Strengthening and Resurfacing ......................................................................... 154
2.5.3 Edge Strengthening / Temporary Widening ............................................................... 155
2.6 VULNERABLE ROAD USERS .............................................................. 156
2.6.1 Pedestrians .................................................................................................................... 156
2.6.2 Cyclists ........................................................................................................................... 156
2.7 ROAD OPENINGS ................................................................................. 158

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Contents
PART 3
3.1 INTRODUCTION ...........................................................................................1 61
3.2 DESIGN PARAMETERS ........................................................................ 161
3.3 REQUIREMENTS .................................................................................. 164
3.3.1 Training and Crew Structure ........................................................................................ 164
3.3.2 Job Information Pack .................................................................................................... 164
3.4 TTM ELEMENTS ................................................................................... 165
3.4.1 Equipment and Signage Requirements ...................................................................... 165
3.4.2 Vehicle Recovery ........................................................................................................... 165
3.5 STATIC TRAFFIC MANAGEMENT ....................................................... 166
3.5.1 Introduction .................................................................................................................... 166
3.5.2 Traffic Flow Conditions for Static Traffic Management ............................................. 166
3.5.3 Advance Warning Signage ........................................................................................... 167
3.5.4 Taper Types .................................................................................................................... 169
3.5.5 Transition Lengths ........................................................................................................ 172
3.5.6 Hard Shoulder Closure ................................................................................................. 173
3.5.7 Lane Closure .................................................................................................................. 174
3.5.7.1 Lane 1 of 2 Lane Carriageway ............................................................................... 174
3.5.7.2 Lane 1 of 3 Lane Carriageway ............................................................................... 174
3.5.7.3 Lane 2 of 2 Lane Carriageway ............................................................................... 175
3.5.7.4 Multi-Lane Closures ............................................................................................... 176
3.5.7.5 Direct Lane 1 Closures ........................................................................................... 178
3.5.8 Merges and Diverges .................................................................................................... 180
3.5.9 Up and Overs ................................................................................................................. 181
3.5.10 Hard Shoulder Running ................................................................................................ 182
3.5.11 Narrow Lane System ..................................................................................................... 183
3.5.12 Crossovers and Contra-flows ...................................................................................... 186
3.5.13 Type 2 and Type 3 Dual Carriageways ........................................................................ 189
3.5.14 Roundabouts .................................................................................................................. 191
3.6 SINGLE VEHICLE OPERATIONS ......................................................... 193
3.7 CYCLISTS .............................................................................................. 194
3.8 MOBILE LANE CLOSURES .................................................................. 195
3.8.1 Design ............................................................................................................................. 195
3.8.2 Variations ....................................................................................................................... 198
3.8.3 Rolling Road Block ........................................................................................................ 198
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Rev 01 | November 2017