Presentation on theme: "Jason Spilak, FHWA Peter Amakobe Atepe Tom Notbohm WisDOT Bureau of Highway Operations Contractor – Engineer Conference January 20, 2010."— Presentation transcript:
Jason Spilak, FHWA Peter Amakobe Atepe Tom Notbohm WisDOT Bureau of Highway Operations Contractor – Engineer Conference January 20, 2010
ARRA Work Zone Reviews Transportation Management Plan (TMP) Process Reviews Work Zone Pedestrian Accommodation Night Work Zone Lighting Specification Oversize/Overweight Load Permitting & Lane Closure System Notification
Work Zone Training Strategic Highway Safety Plan and Work Zone Advisory Group Action Plan Update Manual on Uniform Traffic Control Devices (MUTCD) Update
WTBA-WisDOT Conference January 20, 2010 Traffic Management / Work Zone Safety FHWA - Jason P. Spilak, PE & Bill Bremer, PE
Evaluate the overall quality and effectiveness of work zone traffic control on WisDOT ARRA projects. FHWA and WisDOT engineers conducted in-depth work zone field reviews on 28 projects. Supplemented by other Division staff during routine project oversight reviews. Full range of project types from freeway reconstruction to local bridge replacements.
Examples of traffic control layouts observed in accordance with design standards and devices complying with specifications
Due to significant concern on lack of ability to inspect steel pins passing through both top and bottom sets of wire rope loops to ensure integrity of joints, and overall poor quality of older barriers reviewed, FHWA recommended elimination on high speed situations of 10 barriers. WisDOT concurred in FHWA finding that all use of old 10 barriers must be eliminated on high speed roadways for new projects starting in 2010.
Under the Concrete Barrier Temporary bid items, use 12.5-foot concrete barrier. The engineer will allow 10-foot barrier in locations meeting both of the following: - Anchoring, as specified in the plan details, is not required. - The posted speed is less than or equal to 40 mph.
General conclusion is that overall work zone traffic control practices and condition of devices continues to improve over past years but issues (mostly isolated) continue to be observed. General conclusion is that when WisDOT & consultant inspection staff and prime contractor & traffic control sub work together, a high quality work zone safety product is achieved.
WisDOT Standard Specs (1) requires work zone devices conform to the MUTCD and are in acceptable condition as measured using ATSSA Quality Guidelines for Temporary Traffic Control Devices & Features when project is started. Replace devices the Guide defines as unacceptable at any time through the life of the project. Maintain devices on the project at or above marginal as defined by the Guide using techniques described in the WisDOT spec.
Reviews found that many inspection staff did not have a copy of the ATSSA Guide available for use to inspect when project started. FHWA has arranged for the purchase of an adequate quantity of the ATSSA Guides for all 2010 project leaders and inspectors.
A Focus Review will be on the effectiveness of Transportation Management Plans for ensuring mobility and safety in work zones on ARRA projects. Review and inspection of work zone plans and devices will continue to be a routine part of on- going ARRA field reviews.
Findings: Decisions made early on most projects Stake holders are involved in process Meet regularly to discuss impacts on OSOW Public outreach helps mitigate delay Traffic Control Devices are marginal Flagger training is still an issue Nighttime TC reviews are rarely conducted
Findings Cont.: Contractors are not aware of the requirements in the TMP Chain of Communication is not clearly defined Need for reference to TMP in contract documents Lane closure need to be in specials Guidance for amendment to TMP
Guidance will address: Planning Elements Design Elements Considerations in the field
Planning Elements: Determine TTC Impacts on peds Schools, Senior centers Shopping areas Transit stops etc. Determine the level of accessibility needed Minimize conflicts Address ADA Outreach to the community
Design Elements: Provide pedestrian information Ensure compliance with ADA Maintain continuous accessible path Provide TTC details for peds. Advance signage at intersection Advance Warning Avoid conflict with construction equipment
During Construction in the field Advance warning Advance signage at intersection Minimize ped and equipment interaction Maintaining pathways Sign reflectivity Path is clear of debris and other hazards Sidewalk detours/Closures Provide access.
Developed pilot Special Provision Lighting layout (light placement, mounting height) Glare control Light level and uniformity Aiming of fixtures
Oversize/Overweight Loads Signing for width/height restrictions Notification needs for closures & restrictions
Install width/height restriction warning signs if: Available width is less than or equal to 16 feet (show actual width minus approx. 1 foot on sign) Available height reduced during construction (falsework, etc.) – allow 3-inch shy distance/tolerance on Review of alternate routes
Web-based system for tracking closures and restrictions Notification needs – required for proper Oversize/Overweight permit issuance
Timeframes 14 days – Project start, full roadway closure, or restriction of width, height, weight 7 days - System ramp closure 3 days – Lane and service ramp closure Project Special Provisions
UW Transportation Information Center (TIC) Work Zone and Flagger Safety WisDOT Work Zone Training Flagger Training – identify common objectives
March 23 –Barneveld March 24 –Waukesha March 30 –Tomah March 31 –Stevens Point April 1 –DePere April 6 –Eau Claire April 7 –Hayward April 8 -Tomahawk
March 2010 – Dates & locations to be determined Modules for construction, design, and work zone traffic analysis Work zone traffic control plan/device implementation Oversize/overweight loads Lane closure system and analysis Work zone TMP process review outcomes Mitigation strategies & best practices Temporary concrete barrier placement
Identify common training objectives Equipment Advance warning signing Signaling procedures Visibility and positioning Appropriate flagging operation scenarios
Strategic Highway Safety Plan (SHSP) & Work Zone Advisory Group Action Plan Work zone crash/data analysis Alternative project execution strategies Law enforcement training/resources Work zone automated speed enforcement Work zone public awareness
Work zone crash/data analysis Review broad statistics on number of work zone crashes and fatalities Identify common crash types and causes Determine potential solutions
Alternative project execution strategies CA4PRS software pilot Analyze multiple staging alternatives for project duration, production rates and all associated costs
Law enforcement training/resources Work zone traffic control layouts and devices Enforcement mitigation contracts, agreements and contingencies
Work zone automated speed enforcement Currently prohibited by statutes Some form of automated enforcement in at least 13 states Evidence of reductions in high speeds and injury crashes
Work zone public awareness National Work Zone Awareness Week media event Wisconsin Broadcasters Association spots WKOW-TV announcements Brewers radio network
Revisions to MUTCD Part 6 – Temporary Traffic Control
- Required for all workers within the public right of way - Applies to all roads, not just those on the Federal-aid system - Option for law enforcement and first responders to use new ANSI public safety vests - Firefighters and law enforcement are exempted from the requirement under certain conditions - December 31, 2011 compliance date
R2-6aP G20-5aP R2-1 R2-10 R2-11 R2-12
Delineate path through the TTC zone when the permanent markings are either removed or obliterated during the work activities. Should not be left in place longer than 14 days Some allowable exceptions to normal longitudinal markings requirements
Except for the TA Notes, information in the TA drawings can generally be regarded as Guidance TA 4 – stationary signs may be omitted for mobile work if the work vehicle displays high-intensity strobe lights TA 7 – ROAD CLOSED sign eliminated TA 16 – lanes should be at least 10 feet wide
-TAs 37, 38, 39, 42, and 44 -Arrow board shall be used for all freeway lane closures - Separate arrow board shall be used for each closed lane for multi-lane closures