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Road Management & Engineering Journal |
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October, 1999 TranSafety, Inc. (360) 683-6276 Fax: (360) 335-6402 |
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For highway agencies across the country, maintaining and rehabilitating aging roads
no longer has to mean a completely disrupted traffic flow or endless delays for drivers.
Using everything from nontraditional work schedules to innovative contracting
procedures, State and local agencies are better serving their customers and keeping
traffic moving by getting maintenance and rehabilitation work done more safely,
quickly, and efficiently.
As they change their approach to conducting roadway work, the first question that
agencies ask themselves is “What do customers want?” In a nationwide survey
sponsored by the National Quality Initiative, highway users identified pavement
condition as the top priority for improving roads. In addition to smoother roads, they
also want fewer traffic delays and disruptions caused by work zones. Such disruptions
are not only inconvenient, but they carry a steep price. On many urban highway
reconstruction projects, delays cost road users more than $50,000 a day in lost time
and late deliveries.
To look at how maintenance and rehabilitation projects can be accomplished more
quickly and efficiently, and to better address the problems of traffic disruption and work
zone safety, the Federal Highway Administration (FHWA) conducted a national quality
improvement review last year. The review team met with 26 State highway agencies,
as well as local transportation departments and industry and user groups. Areas
reviewed included work-zone traffic control plans, materials selection, contracting
procedures, and the level of public participation in traffic management policies and
decisions.
The review team found a number of successful strategies that States, cities, and
counties are using to better serve their customers (see [“Best Practices” below]).
State and local highway agencies are also placing more emphasis on preventive
maintenance strategies that can extend a pavement’s service life and lengthen the time
between necessary major rehabilitation work. With timely preventive maintenance, the
useful life of highway pavements can be extended by 5 to 10 years at one-sixth the cost
of conventional pavement rehabilitation or reconstruction.
More information on the best practices identified by the review team can be found on
FHWA’s Web site (www.fhwa.dot.gov/quality/BestPrac.htm) and in the team’s report,
Meeting the Customer’s Needs for Mobility and Safety During Construction and
Maintenance Operations (Publication No. FHWA-PR-98-01-A). To obtain a copy of
the report, contact the Research and Technology Report Center at 301-577-0818 (fax:
301-577-1421).
The lessons learned from FHWA’s review are being incorporated into a new program
called “Optimizing Highway Performance: Meeting the Customers’ Needs.” The goal is
to work with State, local, and industry partners to improve construction and
maintenance operations and ensure smoother, safer travel. This goal reflects FHWA’s
1998 Performance Plan, which called for a 20 percent reduction in delays and highway-
related fatalities and serious injuries on Federal-aid highways over the next 10 years.
The new program has seven interlocking components, each designed to improve
highway operations. They are:
The outreach component, which will encompass hands-on workshops, training courses,
and field tests, will be particularly important in disseminating information on new
technologies and practices. For more information on the program, contact Jim
Sorenson at FHWA, 202-366-1333 (fax: 202-366-9981; email:
[email protected]).
BEST PRACTICES
FHWA’s national quality improvement review team identified a number of best practices
that State and local highway agencies are using across the country to improve their
maintenance operations. For example, the Summertime Bridge Reconstruction
Program in Cobb County, Georgia, is designed so that bridge replacement projects
affecting school bus routes begin after the last day of the school year and are
completed before the beginning of the following school year. This minimizes
inconvenience to students and encourages contractors to work as efficiently as
possible.
In New Jersey, a State trooper unit is assigned full time to State Department of
Transportation (DOT) construction projects to assist with traffic control and improve
work zone safety. North Carolina DOT has a public information program, known as
IMPACT, that informs motorists, businesses, and residents of upcoming road
construction and encourages them to use alternate routes. The city of Columbus, Ohio,
has similarly improved communications with the public by establishing community
advisory councils for large highway projects. The advisory councils include
representatives from businesses, neighborhood associations, and other interested
parties.
Innovative contracting procedures are also cutting the time spent on rehabilitation
projects. Some jurisdictions, for example, are using the lane rental method. The
contractor is assessed a rental fee based on road user costs for each day traffic is
disrupted by lane or shoulder closures. This encourages contractors to schedule their
work so that traffic disruptions are minimized.
To cut down on traffic disruption and increase efficiency, Oregon DOT used new
contracting procedures to award a contract for rehabilitating a bridge on Interstate 5.
The contract award was based upon both the price of bids and contractor
qualifications. Previously, all contracts had been awarded solely on the basis of the
lowest bid.
Several States have successfully used road closures to complete road work faster.
The Washington State DOT completely closed a 9.6-km (6-mi) stretch of Interstate 405
on two consecutive weekends during the summer of 1997 for rehabilitation work. The
public responded favorably, preferring the temporary road closure to a protracted
series of backups. And by cutting a full construction season off what was to be a 3-
year contract, the State saved hundreds of thousands of dollars.
PAVEMENT SMOOTHNESS ENHANCED BY NEW EQUIPMENT
Highway agencies are also better serving their customers by enhancing pavement
smoothness, which both improves driver comfort and increases pavement life
expectancy. New lightweight equipment for measuring initial pavement smoothness is
faster and more accurate than traditional measurement methods. This profiling
equipment automates data collection and analysis, providing test results
instantaneously. And the profilers can be used within hours after paving, enabling
States and contractors to control the quality of the construction and take immediate
corrective action if necessary. This can help save significant amounts of time and
money on road construction and resurfacing projects.
Working with the American Association of State Highway and Transportation Officials,
National Asphalt Pavement Association, American Concrete Pavement Association,
Road Profilers Users Group, and others, FHWA is helping to accelerate the use of the
advanced profiling equipment, as well as the development and implementation of
common standards for pavement smoothness. FHWA has partnered with six State
highway agencies to field test, evaluate, and document the effectiveness of select
lightweight profiling equipment in comparison with the States’ existing practices.
FHWA is also developing a technical guide that will include information on the costs
and benefits of constructing smoother pavements and the most appropriate methods of
measuring pavement smoothness.
