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| SFMTA home > Traffic > Construction > Blue Book > Section 6: Work Area Safety | ||||||||||||||||||||||
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Section 6: Work Area Safety Contractor is responsible for maintaining a safe work area after working hours. 6.1 Maintaining Traffic 6.1.1 Tow-Away Lanes Contractor shall be responsible for keeping “Tow-Away Lanes” clear during the effective hours posted. 6.1.2 Metal Plating Any temporary metal plating and metal bridging shall be coated with a non-skid and rust inhibitive product. Examples of non-skid metal plating are surfaces with waffle-patterns or right angle undulations. Plating shall be installed with no edges or corners sticking up and with no bouncing or shifting. Plates shall be secured against shifting by tack welding, or fasteners. Any non-skid product shall have a friction factor of 0.35 or greater as measured by the California Department of Transportation Test 342. 6.1.3 Transitioning (Ramping) Whenever the grade difference between the existing pavement and the excavated area is greater than ¾ inch, Contractor shall provide longitudinal and transverse transitions prior to opening the lanes to traffic. The maximum slope on these transitions shall be 1:18. Transitions shall be installed with hot asphalt concrete. This section applies to newly constructed roadway base, manholes, metal plating, bridging, etc. 6.1.4 Cyclone Fences Bases of temporary cyclone fences shall not extend over any adjacent traffic or bicycle lane. 6.2 Pavement Markings 6.2.1 Temporary Pavement Markings Temporary markings shall be installed by the Contractor for any existing crosswalk line, STOP line, arrow, and other important legend or traffic lane line removed or damaged by the work activity prior to the end of the work shift and before opening the lanes for traffic. Tape shall be any of the following types and tape shall be installed in accordance with the following criteria: Types of Temporary Striping Tape
Requirements for Placing Temporary Striping
* The dimensions for broken lines apply for streets with posted speed limits of 35 MPH or less. For speed limits of 40 MPH or more, the dimensions are for 12’ long stripes with 36’ gaps. Consult Chapter 3 of the California MUTCD for further details. 6.2.2 Permanent Pavement Markings The Contractor shall deliver one set of the excavation plans to the Department of Parking and Traffic at 1 South Van Ness Avenue, 7th Floor, at the same time application is made for the Excavation permit from DPW-BSM. DPT shall send an estimate of the cost of restoring permanent pavement markings to the Contractor. The Contractor shall send a check for the estimated cost to DPT within 15 working days. The Contractor shall fax confirmation to DPT Traffic Engineering Division at 415-701-4737 when the paving has been accepted by the DPW-BSM Inspector. DPT Paint Shop will install the permanent pavement markings. 6.2.3 Muni Markings The Contractor is responsible for taking inventory of all Muni markings in the work area before doing any work. Markings include yellow “Coach Stop” bars painted on the pavement, yellow “pole stop” bands painted on the sign poles or utility poles, and yellow “breaker marking” dots painted on the pavement. If any Muni marking is damaged or paved over, the Contractor shall immediately notify Muni Service Planning at 415-701-4378 (fax: 415-701-4372) so that Muni Paint Shop will restore the markings. If any pole containing a yellow “pole stop” band is removed from its location, the Contractor shall not install that same pole at a different location without first deleting the yellow band. If any pole containing a yellow “pole stop” band is replaced with a new pole, the Contractor shall notify Muni Service Planning immediately after the new pole is installed. |
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San Francisco DPT is part of the SFMTA. Copyright © 2000-2008 SFMTA. All rights reserved. Updated July 29, 2008 |
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