10 1.__ CONSTRUCTION AREA TRAFFIC CONTROL DEVICES
Flagging, signs, and temporary traffic control devices furnished, installed,
maintained, and removed when no longer required shall conform to the provisions
in Section 12, "Construction Area Traffic Control Devices," of the Standard
Specifications and these special provisions. Category 1 temporary traffic
control devices are defined as small and lightweight (less than 45 kg) devices
which have been in common use for many years. These devices shall be known
to be crashworthy by crash testing, crash testing of similar devices, or
years of demonstrable safe performance. Category 1 temporary traffic control
devices include traffic cones, plastic drums, portable delineators, and
channelizers. If requested by the Engineer, the Contractor shall provide
written self certification for crashworthiness of Category 1 temporary traffic
control devices at least 5 days before beginning any work using the devices
or within 2 days after the request if the devices are already in use. Self
certification shall be provided by the manufacturer or Contractor and shall
include the date, Federal Aid number (if applicable), contract number, district,
county, route and kilometer post of project limits; company name of certifying
vendor, street address, city, state and zip code; printed name, signature
and title of certifying person; and an indication of which Category 1 temporary
traffic control devices will be used on the project. The Contractor may
obtain a standard form for self certification from the Engineer. Category
2 temporary traffic control devices are defined as small and lightweight
(less than 45 kg) devices that are not expected to produce significant vehicular
velocity change, but may cause potentially harmful reactions to impacting
vehicles. Category 2 temporary traffic control devices include barricades
and portable sign supports. Category 2 temporary traffic control devices
purchased on or after October 1, 2000 shall be on the Federal Highway Administration's
(FHWA) list of Acceptable Crashworthy Category 2 Hardware for Work Zones.
This list is maintained by FHWA and can be located at the following Internet
address: http://safety.fhwa.dot.gov/roadway_dept/road_hardware/listing.cfm?code=workzone
The Department also maintains this list at the following Internet address:
http://www.dot.ca.gov/hq/traffops/signtech/signdel/pdf/Category2.pdf Category
2 temporary traffic control devices that have not received FHWA acceptance
and were purchased before October 1, 2000 shall not be used. Category 2
temporary traffic control devices in use that have received FHWA acceptance
shall be labeled with the FHWA acceptance letter number and the name of
the manufacturer before beginning the project. The label shall be readable
and permanently affixed by the manufacturer. Category 2 temporary traffic
control devices without a label shall not be used. If requested by the Engineer,
the Contractor shall provide a written list of Category 2 temporary traffic
control devices to be used on the project at least 5 days before beginning
any work using the devices or within 2 days after the request if the devices
are already in use. Category 3 temporary traffic control devices consist
of temporary traffic handling equipment and devices which weigh 45 kg or
more and are expected to produce significant vehicular velocity change to
impacting vehicles. Temporary traffic handling equipment and devices include
stationary mounted and portable sign supports, crash cushions, truck mounted
attenuators, temporary railing, temporary barrier, and end treatments for
temporary railing and barrier. Type III barricades may be used as sign supports
if the barricades have been successfully crash tested as one unit with a
construction area sign attached. Category 3 temporary traffic control devices
purchased on or after October 1, 2002 shall be shown on the plans or on
the Department's Highway Safety Features list. This list is maintained by
the Division of Engineering Services and can be found at the following Internet
address: http://www.dot.ca.gov/hq/esc/approved_products_list/HighwaySafe.htm
Category 3 temporary traffic control devices that are not shown on the plans,
not listed on the Department's Highway Safety Features list, or purchased
before October 1, 2002 shall not be used. Full compensation for providing
self certification for crashworthiness of Category 1 temporary traffic control
devices, for providing a list of Category 2 temporary traffic control devices
used on the project and for labeling Category 2 temporary traffic control
devices as specified shall be considered as included in the prices paid
for the various items of work requiring the use of the Category 1 or Category
2 temporary traffic control devices and no additional compensation will
be allowed therefor. |