TxDOT Specifications

1995 Standard Specifications Book

Last Update (11/05/2003)

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DIVISION VI - LIGHTING AND SIGNING
(Items 660 to 688)

Table Of Contents

660 WINGED CHANNEL POSTS
662 WORK ZONE PAVEMENT MARKINGS
666 REFLECTORIZED PAVEMENT MARKINGS
668 PREFABRICATED PAVEMENT MARKINGS
672 RAISED PAVEMENT MARKERS
677 ELIMINATING EXISTING PAVEMENT MARKINGS AND MARKERS
678 PAVEMENT SURFACE PREPARATION FOR MARKINGS
680 INSTALLATION OF HIGHWAY TRAFFIC SIGNALS
681 TEMPORARY TRAFFIC SIGNALS FOR CONSTRUCTION
682 VEHICLE AND PEDESTRIAN SIGNAL HEADS
684 TRAFFIC SIGNAL CABLES
686 TRAFFIC SIGNAL POLE ASSEMBLIES (STEEL)
688 TRAFFIC SIGNAL DETECTORS

ITEM NO. - TITLE AND REQUIREMENTS

660 - WINGED CHANNEL POSTS

SPECIFICATION REQUIREMENTS
1) Locations for installing the winged channel posts must be shown on the plans.
2) The length and mass of the winged channel post must be shown on the plans.
3) Winged channel posts will be installed such that the reflector units and/or reflectorized
     panels will be at the height shown on the plans.
4) The minimum embedment depth for the winged channel posts must be shown on the plans.
5) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
1) When required, galvanizing will be in accordance with Item 445.

PAYMENT DESCRIPTION UNITS
1) "Winged Channel Posts (Length Specified) (Mass Specified)" EA

REFERENCE ITEMS
None

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662 - WORK ZONE PAVEMENT MARKINGS

SPECIFICATION REQUIREMENTS
1) The location and placement of work zone pavement markings must be shown on the plans
     for all roadways to be opened to traffic during construction.
2) The description specifying the type, color (white or yellow) and widths of the work zone
     pavement markings must be shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Work Zone Pavement Markings (Removable) (White or Yellow) (Type Specified)
(Width Specified)" M, EA
2) "Work Zone Pavement Markings (Non-removable) (White or Yellow) (Type Specified)
(Width Specified)" M, EA
3) "Work Zone Pavement Markings (Short Term) (White or Yellow) (Type Specified)
(Width Specified)" M, EA
4) "Work Zone Pavement Markings (Guidemark) (White or Yellow)" M, EA

REFERENCE ITEMS
(666, 672)

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666 - REFLECTORIZED PAVEMENT MARKINGS

SPECIFICATION REQUIREMENTS
1) The location and placement of reflectorized pavement markings must be shown on the plans.
2) The description specifying the type, color (white or yellow), shapes, sizes, widths and
     thickness of the reflectorized pavement markings must be shown on the plans.
3) Guides to mark the lateral location of pavement markings will be established as shown on
    the plans or as directed by the Engineer.
4) Where double stripes are placed, each stripe will be measured separately.
5) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
1) When required, markings placed that are not in alignment or sequence, as shown on the
    plans or as stated in this specification, shall be removed at the Contractor’s expense and
    in accordance with Item 677.

PAYMENT DESCRIPTION UNITS
1) "Reflectorized Pavement Markings (White or Yellow) (Specify the Type, Shape,
Size and/or Width) (Specify Thickness for Type I Markings only)" M, EA

REFERENCE ITEMS
None

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668 - PREFABRICATED PAVEMENT MARKINGS

SPECIFICATION REQUIREMENTS
1) The location and placement of prefabricated pavement markings must be shown on the plans.
2) The descriptions specifying the types, colors, shapes and sizes of prefabricated pavement
    markings must be shown on the plans.
3) Guides to mark the lateral location of prefabricated pavement markings will be established as
    shown on the plans or as directed by the Engineer.
4) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
1) When required, blast cleaning shall be done in accordance with Item 678.

PAYMENT DESCRIPTION UNITS
1) "Prefabricated Pavement Markings (White or Yellow) (Specify the Type,
Shape and/or Size)" M, EA

REFERENCE ITEMS
None

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672 - RAISED PAVEMENT MARKERS

SPECIFICATION REQUIREMENTS
1) The location and placement of raised pavement markers must be shown on the plans.
2) The types and classes of raised pavement markers must be shown on the plans.
3) Guides to mark the lateral location of raised pavement markers will be established as shown
    on the plans or as directed by the Engineer.
4) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
1) When required, markings placed that are not in alignment or sequence, as shown on the plans
    or as stated in this specification, shall be removed at the Contractor's expense and in
    accordance with Item 677.

PAYMENT DESCRIPTION UNITS
1) "Raised Pavement Markers (Class Specified) (Type Specified)" EA

REFERENCE ITEMS
(5381)

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677 - ELIMINATING EXISTING PAVEMENT MARKINGS AND MARKERS

SPECIFICATION REQUIREMENTS
1) The elimination of the existing pavement markings of the various types and sizes, and 
    raised pavement markers will be shown on plans or as directed, in writing, by the Engineer.
2) Asphalt and aggregate types and grades will be as shown on plans or as approved in 
    writing by the Engineer.
3) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Eliminating Existing Pavement Markings and Markers (Type Specified)" M, M2, EA

REFERENCE ITEMS
(300, 302, 316, 678)

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678 - PAVEMENT SURFACE PREPARATION FOR MARKINGS

SPECIFICATION REQUIREMENTS
1) The location of the pavement surface areas to be prepared for the pavement surface
    preparation for pavement markings or raised pavement markers must be shown on the plans.
2) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Pavement Surface Preparation for Markings (Type Specified)" M, EA

REFERENCE ITEMS
None

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680 - INSTALLATION OF HIGHWAY TRAFFIC SIGNALS

SPECIFICATION REQUIREMENTS
1) The locations and the details of the installation of the highway traffic signals must
    be shown on the plans.
2) The details of the controller assemblies must be shown on the plans.
3) The details of the flasher assemblies must be shown on the plans.
4) Materials not provided by the utility company for the electrical services will be supplied
    and installed by the contractor as shown on the plans.
5) The types, sizes and lengths of conduits and fittings must be shown on the plans.
6) Sign lighting attached to traffic signal equipment will be as shown on the plans.
7) Luminaires on signal poles will be as shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Installation of Highway Traffic Signals (Type Specified)" EA

REFERENCE ITEMS
(610, 625, 627, 634, 636, 6000, 6001, 6002, 6003, 6004, 6005, 6007, 6008, 6010, 6023)

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681 - TEMPORARY TRAFFIC SIGNALS FOR CONSTRUCTION

SPECIFICATION REQUIREMENTS
1) The locations and details for installing, operating, maintaining, reconfiguring and
     removing temporary traffic signals for controlling traffic during construction must be
     shown on the plans.
2) Any signal equipment furnished by the department will be picked up by the contractor
    at locations shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Temporary Traffic Signals for Construction" EA

REFERENCE ITEMS
(680)

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682 - VEHICLE AND PEDESTRIAN SIGNAL HEADS

SPECIFICATION REQUIREMENTS
1) The types, sizes and details for installing vehicle and pedestrian signal heads must be
    shown on the plans.
2) The type, color and size of the lens for vehicle signal sections will be as shown on the plans.
3) The size of the lens for pedestrian signal sections will be as shown on the plans.
4) The door of each housing case will be one piece and will accommodate the lens size
    shown on the plans.
5) Mounting attachments will be as shown on the plans.
6) Signal heads will be assembled and mounted as shown on the the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Pedestrian Signal Section (Type Specified) (Size Specified)" EA
2) "Vehicle Signal Section (Type Specified) (Size Specified)" EA
3) "Back Plate (Type Specified) (Size Specified)" EA
4) "Louver (Type Specified) (Size Specified)" EA

REFERENCE ITEMS
None

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684 - TRAFFIC SIGNAL CABLES

SPECIFICATION REQUIREMENTS
1) The sizes, types, lengths and details for the installation of traffic signal cables must be
    shown on the plans.
2) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Traffic Signal Cables (Type Specified) (Size Specified)" M

REFERENCE ITEMS
None

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686 - TRAFFIC SIGNAL POLE ASSEMBLIES (STEEL)

SPECIFICATION REQUIREMENTS
1) The types and sizes of the traffic signal pole assemblies must be shown on the plans.
2) The location of the traffic signal poles must be shown on the plans.
3) Fabrication, welding and erection details must be shown on the plans.
4) The design wind speed for the traffic signal pole assemblies must be specified on the plans.
5) For optional pole designs, the pole assemblies will be compatible with the foundation
    details, signal heads and other attachments shown on the plans.
6) Foundations for the traffic signal pole assemblies will be constructed to the details shown
    on plans and will be paid for under Item 656.
7) Shafts for poles and mast arms may be round or octagonal and will be tapered as shown
    on the plans.
8) Anchor bolts will be oriented as shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Traffic Signal Pole Assemblies (Steel) (Types Specified) (Size Specified)" EA

REFERENCE ITEMS
(441, 442, 445, 449)

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688 - TRAFFIC SIGNAL DETECTORS

SPECIFICATION REQUIREMENTS
1) The sizes, types and details for the installation of traffic signal detectors must be shown
    on the plans.
2) A pedestrian push button sign will be mounted near each push button as shown
    on the plans.
3) The locations, configurations, wire colors and number of turns for the vehicle detectors
     will be shown on the plans.
4) Sealant for the vehicle detector loops will be as shown on the plans.
5) Conduits will be placed between the pavement and ground box as shown on the plans.
6) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Vehicle Detectors (Size Specified) (Type Specified)" M
2) "Pedestrian Detectors (Size Specified) (Type Specified)" EA

REFERENCE ITEMS
(682)

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