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Caltrans Proves Effectiveness of Pavement Renewal Approach 14 TR NEWS NUMBER 232 MAY–JUNE 2004 3 Get In, Get Out, Stay Out! Caltrans Proves Effectiveness of Pavement Renewal Approach Kirsten R. Stahl and Mario A. Gutierrez Six years ago, a national workshop convened to discuss and develop innovative 3 approaches to the timely repair of crowded freeways. The California Department of Transportation, host of the workshop, immediately set out to apply the most workable concepts. Here is a report on the successful results with asphalt concrete and portland cement concrete projects. 4 Renewal Program Awaiting Launch Ann M. Brach 5 Birth of the Accelerated Construction Technology Transfer Team Frederick D. Hejl 6 Accelerated Construction Technology Transfer Workshops: 14 Completing Projects Faster, Safer, and Better Bill Bolles 8 Mix and Structure of I-710’s Long-Lasting Pavement Carl L. Monismith 12 CA4PRS Software Generates Pavement Rehabilitation Strategies Eul-Bum Lee, John T. Harvey, and Michael M. Samadian 14 The AASHO Road Test: Living Legacy for Highway Pavements 35 Kurt D. Smith, Kathryn A. Zimmerman, and Fred N. Finn The AASHO Road Test, conducted more than four decades ago, established many standards and protocols and helped define many pavement design, construction, and evaluation practices for rigid and flexible pavements. How did the pioneering project originate, gain support, develop, proceed, and produce such long-lasting, influential results? 23 Withstanding the Test of Time Fred N. Finn 24 Smithsonian to Archive Road Test Records Linda Mason 25 TRANSIT COOPERATIVE RESEARCH PROGRAM REPORT Cover: The new Transit Capacity and Quality of Service Manual assists The New Transit Capacity and Quality of Service Manual: planners in setting transit service Tour of the Expanded Guide for Transit Planners and Operators goals for a community. Shown here, Herbert S. Levinson Washington, D.C.-area commuters The second edition of the comprehensive, practical reference for planning and depart from the Shady Grove evaluating all modes and varieties of transit service has made its debut in print Metrorail station in Derwood, and on the web. A key player in the original development of the manual reviews Maryland, to buses, automobiles, some of the major concepts and their applications, as well as the new and bicycles, and taxicabs. expanded material. (Photo: Paul A. Souders/CORBIS.) TR NEWS 35 TRB SPECIAL REPORT Buckling Up: features articles on innovative and timely research and development activities in all modes of trans- Technologies to Increase Seat Belt Use portation. Brief news items of interest to the Nancy P. Humphrey transportation community are also included, Legislative and regulatory actions are necessary to enable installation of effective along with profiles of transportation profes- sionals, meeting announcements, summaries of and acceptable seat belt use reminder technologies in passenger vehicles, new publications, and news of Transportation according to a TRB study requested by Congress through the National Research Research Board activities. Council of the National Academies. TR News is produced by the Transportation Research Board 38 TRB SPECIAL REPORT Publications Office Shipboard Automatic Identification System Displays: Javy Awan, Editor and Publications Director David Altstadt, Assistant Editor Meeting the Needs of Mariners Juanita Green, Production Manager Jocelyn N. Sands Michelle Wandres, Graphic Designer Charged with developing U.S. standards for automatic identification systems that TR News Editorial Board communicate a ship’s position, course, and speed, the U.S. Coast Guard Neil F. Hawks, Chairman requested the advice of an expert committee assembled by the National Research Joseph A. Breen Council through the TRB Marine Board. The committee’s recommendations Walter J. Diewald Frederick D. Hejl address electronic systems engineering, human factors, the state of the art, and Timothy Hess solutions to current problems. David Jones Stephan A. Parker Barbara L. Post A. Robert Raab ALSO IN THIS ISSUE Transportation Research Board 34 Calendar Robert E. Skinner, Jr., Executive Director Suzanne B. Schneider, Associate Executive Director 42 Research Pays Off Mark R. Norman, Director, Technical Activities Antifreeze Concrete Paving: Stephen R. Godwin, Director, Admixtures Facilitate Cold-Weather Construction Studies and Information Services Michael P.LaPlante, Director, Charles J. Korhonen Administration and Finance Robert J. Reilly, Director, Cooperative Research Programs 44 Profiles Neil F. Hawks, Director, Special Programs Geotechnical engineer Richard Cheney and travel behavior researcher Elaine Reiko Murakami. TR News (ISSN 0738-6826) is issued bimonthly by the Transportation Research Board, National Research Council, 500 Fifth Street, NW,Washington, 46 News Briefs DC 20001. Internet address: www.TRB.org. Sealing potholes, Click It or Ticket success, congestion remedies, Editorial Correspondence: By mail to the and lightening buses. Publications Office, Transportation Research Board, 500 Fifth Street, NW, Washington, DC 20001, by telephone 202-334-2972, by fax 202-334-3495, or 48 TRB Highlights by e-mail [email protected]. CRP News, 48 Subscriptions: North America: 1 year $55; sin- gle issue $9.50. Overseas: 1 year $75; single issue $13.50. Inquiries or communications concerning 49 Bookshelf new subscriptions, subscription problems, or sin- gle-copy sales should be addressed to the Business Office at the address below, or telephone 202- COMING NEXT ISSUE 334-3216, fax 202-334-2519. Periodicals postage paid at Washington, D.C. Transportation, National Parks, and Public Postmaster: Send changes of address to TR News, Lands is the theme of feature articles Transportation Research Board, 500 Fifth Street, NW,Washington, DC 20001. scheduled for the July–August 2004 TR News. Topics include intelligent Notice: The opinions expressed in articles appearing transportation systems and advanced in TR News are those of the authors and do not necessarily reflect the views of the Transportation technologies in national parks, bicycle and Research Board. The Transportation Research Board pedestrian facilities, transportation issues and TR News do not endorse products of manufac- for urban parks, special fleet development, turers. Trade and manufacturers’ names appear in an article only because they are considered essential to the National Park Transportation Scholar its object. Program, and more. Printed in the United States of America. Newly installed variable message sign Copyright © 2004 Transportation Research Board. undergoes initial tests in Great Smoky All rights reserved. Mountains National Park, Tennessee. Workers from the California Department of Transportation rebuild I-5 with long-life pavement. Get In, Get Out, Stay Out! Caltrans Proves Effectiveness of Pavement Renewal Approach KIRSTEN R. STAHL AND MARIO A. GUTIERREZ Stahl is District Materials ix years ago, the California Department of The publication presented the workshop’s vision Engineer, and Gutierrez is Transportation (Caltrans), in coordination for roadway renewal: identify the most innovative Senior Transportation with the Federal Highway Administration and effective engineering practices and technologies Engineer, California and the Transportation Research Board that could provide a comfortable riding surface last- S(TRB), convened a weeklong Workshop on Pave- ing for 40 years with minimal maintenance. These Department of Transportation, Los ment Renewal for Urban Freeways. Representatives pavement characteristics would translate into Angeles. Stahl chairs the from state transportation agencies, other public and decreased interruptions for road users and National Cooperative local agencies, and nationwide contractors exam- increased efficiency in moving goods and services. Highway Research ined a major problem for highly urbanized areas— Transportation agencies face a growing number of Program Panel on the timely repair of crowded freeways. obstacles and time constraints in maintaining freeway The week of discussions, brainstorming, pre- facilities in safe and acceptable operating conditions. A Durability of Early- 2004 TR NEWS 232 MAY–JUNE Opening-to-Traffic sentations, and exchanges of ideas and information dynamic and demanding society puts cars on the free- Portland Cement Concrete about innovative technologies focused on practical ways at a rate that makes it almost impossible to keep for Pavement solutions. The workshop defined the concept that up with repairs to the normal wear-and-tear. Rehabilitation. became the title of a TRB report released in 2000, Caltrans has dedicated resources to create and Get In, Get Out, Stay Out!1 implement pavement renewal solutions in line with 1 Get In, Get Out, Stay Out! Proceedings of the Workshop on Pavement Renewal for Urban Freeways. TRB, National Research Council, Washington, D.C., 2000. Available from TRB bookstore, www.TRB.org/bookstore/, or online at http://gulliver.trb.org/ publications/sp/getin_getout_stayout.pdf. 3 the imperatives of get in, get out, stay out. Through Sorting the Proposals experimental projects in Southern California, Cal- The proposals covered a range of scopes and budgets trans has achieved results that are paving the way but shared the objectives of get in, get out, stay out. to long-lasting, minimal maintenance freeways. The common denominators were a low-maintenance and long-lasting pavement structure, abbreviated Answering a Challenge construction time, and minimal impact on the com- In a workshop challenge, teams of participants
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