Concepts for enhancing the effectiveness of traffic control plans
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CONCEPTS FOR ENHANCING THE EFFECTIVENESS OF TRAFFIC CONTROL PLANS. Stuart Anderson Gerald Ullman Making Work Zones Work Better Workshop. Background. Maintenance of traffic issues and traffic control plans (TCP) Temporal and spatial requirements impact construction Temporal - time

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CONCEPTS FOR ENHANCING THE EFFECTIVENESS OF TRAFFIC CONTROL PLANS

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Concepts for enhancing the effectiveness of traffic control plans

CONCEPTS FOR ENHANCING THE EFFECTIVENESS OF TRAFFIC CONTROL PLANS

Stuart Anderson

Gerald Ullman

Making Work Zones Work Better Workshop


Background

Background

  • Maintenance of traffic issues and traffic control plans (TCP)

  • Temporal and spatial requirements impact construction

    • Temporal - time

    • Spatial - dimensions

  • Options available


Background1

Background


Problem

Problem

  • Lack of early and sufficient input of traffic and construction expertise

  • Policy directives, funding and other factors often limit alternatives

  • Solution may be sub-optimal


Preferred practice

Preferred Practice

  • Prior to detailed PS&E design

  • During detailed PS&E design


Consider

Consider

  • Pavement related processes

    • What is done

    • Pavement treatments and materials


Consider1

Consider

  • Non-pavement related processes

    • How is pavement treatment accomplished

    • Traffic and construction related issues


Process approach

Process Approach

  • Integrate pavement and non-pavement related processes

  • Process developed under NCHRP Project 10-50A

  • Fundementals

    • Start early in project development

    • Use multidisciplinary team approach

    • Analyze Traffic approaches to minimize impacts

    • Promote construction input on continuous basis


Process approach1

Process Approach

  • Four main steps

    • Identify candidate sections

    • Identify pavement condition

    • Screen potential strategies

    • Evaluate feasible strategies

  • Content of steps

    • Objectives

    • Key activities

    • Issues to consider

    • Resources

    • Practical illustrations


Process approach2

Process Approach

  • Validated by industry

  • Case studies demonstrated applicability

  • Documented in final report

    • A Process for Selecting Strategies for Rehabilitation of Rigid Pavements, Final Report, NCHRP Project 10-50A, February 2002

    • Contact NCHRP Program for Copy


Concepts for enhancing the effectiveness of traffic control plans

Selection

Process


Screen potential strategies

Screen Potential Strategies


Resource

Resource

  • Description of resource

  • Relevance to analysis

  • References for more information

  • Examples

    • Work zone analysis tool - QUICKZONE

    • Workshop approach - Get In, Get Out, Stay Application

    • Constructibility Review Process Workbook - NCHRP Report 391


Traffic and construction issues

Traffic and Construction Issues


Traffic and construction issues caltrans i 710 alternative

Traffic and Construction Issues:Caltrans I-710 Alternative

  • Traffic

    • Segmental full closure (3 to 5 miles) in one direction

    • All lanes available to traffic weekdays

    • Install ITS during construction

    • Recommend use of alternate routes (I-110, I-605, Lakewood Blvd. and other local streets)


Traffic and construction issues caltrans i 710 alternative1

Traffic and Construction Issues:Caltrans I-710 Alternative

  • Construction

    • Two concrete plants

    • Concrete plants produce about 1800 CY per hour

    • Back-up equipment and extra sources of materials

    • Recycle existing PCC pavement

    • Ten-hour shifts

    • Three stage operation

    • 16 weekends


Evaluate potential strategies

Evaluate Potential Strategies


Level of analysis

Level of Analysis

  • DOT standard traffic and construction approach

  • DOT standard traffic and construction approach but with some enhanced techniques to address special issues

  • A corridor wide project-oriented traffic and construction approach


Traffic analysis michigan i 496 project

Traffic Analysis:Michigan I-496 Project


Tcp development for ps e

TCP Development for PS&E

  • Traffic

  • Constructibility reviews

  • Contract methods

  • Materials and equipment

See NCHRP Synthesis 293


Benefits

Benefits

  • Efficient and cost effective construction

  • Minimize impact on road users, local businesses

  • Safer work zones

  • Special needs identified early


Application

Application

  • Most projects types and sizes

  • May have higher impact on projects with high traffic volumes

  • Concepts currently being tested

    • TRB Task Force A5T60, “Accelerating Innovation in the Highway Industry”

    • IPRF research project, “Traffic Management Studies for Reconstruction of High Volume Roadways”


Application tf a5t60

Application - TF A5T60

  • Accelerated Construction Technology Team (ACTT)

    • Corridor review

    • “Outside” experts visit state experts

    • Share, learn, and promote new ideas

  • Two-day workshop with Indiana and Penn DOTs

  • Proposed use of innovation in twelve areas

  • Ultimately - DOT decides what is best for their project


Application twelve areas

Corridor improvements

Contracting and procurement techniques

Work zone traffic management

Stay out techniques

Constructibility

Geotechnology

Utility delays

Prefab/modular

High speed QA/QC

Workforce health and safety

Training and education

Communications of best practices

Application - Twelve Areas


Application iprf project

Application - IPRF Project

  • Task 6 Conceptual Study

  • Workshops with DOT

  • Late in programming/early in design

  • Brainstorm traffic and construction issues

  • Recommend feasible alternatives

  • Current studies

    • Mississippi DOT - I-55 South of Memphis

    • Washington DOT - I-5 through Seattle


Lessons learned

Lessons Learned

  • Do not “set” design basis too early

  • Team approach enhances TCP development

  • Early involvement of traffic and construction expertise helps identify possible problems and solutions


Conclusions

Conclusions

  • DOTs should be encouraged to follow concepts throughout TCP development

  • Constructibility reviews integral to TCP development

  • Team approach essential especially on larger projects


Concepts for enhancing the effectiveness of traffic control plans

Thank you!

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