NCHRP Report 581: Design of Construction Work Zones on High-Speed Highways
View larger
  • Status: Final Book
  • Downloads: 25
NCHRP Report 581:
Design of Construction Work Zones on High-Speed Highways
(2007)
Purchase Options
Purchase Options
Overview

Authors

Description

TRB's National Cooperative Highway Research Program (NCHRP) Report 581: Design of Construction Work Zones on High-Speed Highways explores an approach for the selection of an appropriate construction work zone type; offers suggested guidance for the design of geometric features, including horizontal and vertical alignment, cross-sectional features, and barrier placement; and examines a variety of ancillary features such as drainage systems, lighting, and surface type. The contractor's final report on the research activities used to develop NCHRP Report 581 has been published as NCHRP Web-Only Document 105. As part of the research associated with this activity, a work zone prediction model and user's guide was created to help estimate free-flow vehicle speeds through two types of construction work zones on four lane freeways--single lane closures and median crossovers.

Topics

Publication Info

77 pages | 8.5 x 11
Contents

Table of Contents

skim chapter
Front Matter i-xi
Preface 1-1
1.1 Background 2-2
1.2 Terminology 3-5
2.1.4 Setting 6-6
2.2.1 Safety 7-7
2.2.4.1 Establish Reasonable Target Speeds 8-8
2.2.6 Sight Distance 9-9
2.2.7 Forgiving Roadside 10-10
2.3.1 Curvature-Superelevation Relationship 11-11
2.3.2 Superelevation Distribution 12-12
2.3.2.2 Design Superelevation Rates Based on Method 5 Distribution 13-15
2.3.4 Vertical Alignment Considerations 16-16
3.1 Project-Level Work Zone Strategies 17-17
3.1.2 Detour 18-18
3.1.6 Lane Closure 19-19
3.1.9 Use of Shoulder 20-20
3.2.1.1 A+B Bidding 21-21
3.2.1.4 Lane Rental 22-22
3.3 Identifying and Evaluating Alternative Work Zone Strategies 23-25
3.3.3 Capacity and Queues 26-26
3.3.7 Summary 27-27
4.1.2 Vertical Alignment 28-28
4.2 Lane Constriction 29-29
4.3 Median Crossover 30-30
4.3.1 Temporary Roadways Connecting the Permanent Roadways 31-31
4.3.1.3 Cross Section and Surface 32-32
4.3.2 One-Way Roadway Used for Two-Way Traffic 33-33
4.4.1 Cross Section and Surface 34-34
4.5 Interchange Ramps 35-35
4.5.1 Entrance Ramps 36-37
4.6.2 Intersection Relocation 38-38
4.6.3 Maintain Movements with TTC 39-39
5.1 Introduction to Roadside Safety in Construction Work Zones 40-40
5.2 Clear Zones 41-41
5.3 Identification and Treatment of Construction Work Zone Hazards 42-42
5.5 Barrier Placement Guidance for Construction Work Zones 43-43
5.5.2 Outside Shoulder Closure on a Four-Lane Divided Highway with Minor Encroachment 44-45
5.5.3 Median Shoulder Closure on a Four-Lane Divided Highway with Minor Encroachment 46-48
5.5.4 Bridge Reconstruction with a Temporary Diversion/Runaround on a Two-Lane, Two-Way Highway 49-49
5.5.5 Separation of Two-Lane, Two-Way Traffic on a Normally Divided Facility 50-51
5.5.6 Protection of a Normally Downstream Barrier End for Two-Lane, Two-Way Traffic on a Normally Divided Facility 52-55
5.6.1 Traffic Barriers 56-57
5.6.5 Crash Cushions 58-58
6.1.2 Considerations Unique to Work Zones 59-59
6.3 Emergency Turnouts 60-60
6.4.2 Enforcement Pullout Area Design 61-61
6.8 Lighting 62-62
6.9 Rumble Strips 63-63
References 64-64
Supplemental Materials 65-65
Abbreviations used without definitions in TRB publications 66-66

Related Books more

More by the National Cooperative Highway Research Program more