Proposed: Temporary Traffic Management Design Guidance

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2 Current Temporary Traffic Management Guidance Structure: Chapter 8 Traffic Signs Manual First published in 1996, updated 2007 Addendum in 2010 Guidance for the Control and Management of Traffic at Road Works Design guidance document for TTM at road works on single carriageway roads. First Edition in Second Edition in Update required primarily as a result of new Works Types and Road Classifications. Revision also required to address particular items which have arisen since previous version.

3 Current: Guidance for the Control and Management of Traffic at Road Works Design guidance document for TTM at road works on single carriageway roads - Second Edition 2010 Single Carriageways only Proposed: Temporary Traffic Management Design Guidance Incorporates all road types Structure: Part 0 General Guidance Part 1 Urban and Low Speed Roads Part 2 Rural Single Carriageway Roads Part 3 Dual Carriageways and Motorways

4 Part 0 Introduction Roads and Legal Background Health and Safety TTM Design Process Planning Detailed Design TTM Elements TTM Design Criteria Static Operations Junctions and Roundabouts

5 Part 1 Design Parameters Urban Design Process Signalised Junctions Multi-Lane Streets Urban Dual Carriageways Part 2 Design Parameters Semi-Static Operations Wide single carriageways and overtaking lanes Specific Operations Local Authority Type Works Minor Roads Part 3 Design Parameters Static Lane Closures Mobile Lane Closures Merges / Diverges Narrow Lanes Contra-Flows

6 New Road Classifications and Roadworks Types New Design Parameters for each road classification Additional guidance on visibility requirements New Urban Design Guidance Multi-lane Streets, Urban Dual Carriageways Expansion of current Semi-Static Guidance Climbing Lanes and Wide Single Carriageways Operations on Narrow Minor Roads Level 3 Design Guidance

7 Type A Works No. Of Signs Distance Between Signs Cumulative Distance Sign Visibility Longitudinal Safety Zone Existing Proposed km/hr Level 2 Road had been the same for 80 and 100km/hr Type B Works No. f Signs Distance Between Signs Cumulative Distance Sign Visibility Longitudinal Safety Zone Existing Proposed

8 Current Position TSM Ministerial Directive to Road Authorities under Section 95(16) of the Road Traffic Act 1961 in relation to the provision of traffic signs. Sign specifications, works types, road classifications, traffic control methods TSM Chapter 8 requires Ministerial approval to implement revisions Operation Guidance Documents require Chapter 8 updating.

9 Existing short-falls Urban TTM requirements Low speed dual carriageways and multi-lane streets Single Vehicle Operations Narrow lanes Barrier Use Semi-static Operations Climbing Lanes, 2+1 s 2+2 s Contra flows & Crossovers Excessive Information High speed operational guidance Diagrams

10 Chapter 8 TSM New Structure Introduction Parameters of TM New classifications etc. Elements of TTM Signs Barriers etc. Static Operations Level 1 - Urban Level 2 - Rural Level 3 - High Speed Semi-static Operations Level 1 and Level 2 only Mobile Lane Closures Level 3 only

11 Overall Suite of TM Documentation - Chapter 8 TSM - Design Guidance - Operation Guidance Training & Competence New Classification, Roadworks Types and Design Parameters Vulnerable Road Users Narrow Lanes 2+1 and 2+2 Carriageways Crossovers and Contra-Flows Overall Signage Review Mobile Lane Closure Techniques

12 Next Steps Chapter 8 and Design Guidance Consultation Process Q Stakeholder issues for consideration into the Design Guidance and Chapter 8. Chapter 8 and Design Guidance issues can be ed to: ttm@dttas.ie This is to ensure a comprehensive revision of these documents are accomplished

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