127.32(A) Design standards.
127.32(A)(1) The design and
of
signals shall be in accordance with the following standards:
127.32(A)(1)(a) FDOT Standard Plans For Road and Bridge
.
127.32(A)(1)(b) Florida Greenbook.
127.32(A)(1)(c) MUTCD.
127.32(A)(1)(d) Minimum Standards Applicable to
under Broward County Jurisdiction.
127.32(A)(2) All materials and workmanship shall meet the requirements of MUTCD, Institute of Transportation Engineers, the National Electrical Code, Underwriters Laboratories, Inc., Industrial Control Standards of National Electrical Manufacturers
, FDOT, BCTED, and applicable
and local agency standards.
127.32(A)(3) All materials used in the construction of
signals shall be manufactured by a firm engaged in the production of such materials for at least a five-
period, and shall be of the manufacturer’s latest standard design, which complies with latest Broward County standards.
127.32(A)(4) All
signals shall have Weston style poles and mast arms with attached luminaires. These elements should preferably be aluminum. For mast arms longer than 60 feet, steel poles and mast arms can be used. All poles, mast arms and other accessories shall be given adequate rust protection treatment as specified in these standards.
127.32(A)(5) Signal poles should have a height adequate to provide a minimum 17.5 feet clearance measured from the bottom of signal head to the crown of the road. The maximum height is determined by vertical sight distance as stated in the MUTCD. Poles shall be located at the
(back of the
), whenever possible.
127.32(A)(6) Pole positions and conduit routing may be adjusted as approved by the
and the BCTED to prevent conflicts with utility and drainage structures.
127.32(A)(7) A minimum of two signal heads shall be provided for each approach. Heads shall be located from 40 to 180 feet from the stop bar, where, because of the
geometry, the nearest signal face is 180 feet or more beyond the stop bar, a supplemental near side signal face shall be used. Non-permissive left-turn signals shall be three-section consisting of green arrow, yellow arrow and red ball. Use “left-turn signal” sign adjacent to non-permissive left turn signal(s). Dual left turn lanes require two three-section turn signals. Use five-section head cluster for protected permissive left-turning movements where such movements are warranted.
127.32(A)(8) All the signal indications shall be 12-inch glass lenses and LED for all indications unless otherwise specified by the BCTED
127.32(A)(9) Pedestrian signal heads and push buttons are to be installed at all signalized intersections unless otherwise approved. Crosswalks shall be a minimum of ten feet wide, with curb-cut ADA compliant ramps centered at each end. Pedestrian signals are to be aligned within crosswalks as closely as possible.
127.32(A)(10) All “T” intersections shall have a four-phase full activated controller in a BC 333 cabinet and all four-way intersections shall have an eight-phase full activated controller in a BC 333 cabinet unless otherwise specified by the BCTED. A BC 4T cabinet shall be used to accommodate an existing telephone drop location.
127.32(A)(11) Detection for vehicular movement through an approach shall be accomplished using mast arm mounted video detection cameras. All video vehicle detection systems shall be approved by the
prior to installation.
127.32(A)(12) Coaxial cable for video detection are to be placed in its own separate conduit independent of signal cable conduit.
127.32(A)(13) All poles, controllers, detector cabinets and other elements of the installation shall be grounded using a ground rod assembly or a ground rod array. The poles shall be grounded for a minimum depth of 60 feet, the loop detector pull boxes shall be grounded for at least ten feet, and the controller cabinet shall be grounded for at least 110 feet or latest specification from the BCTED.
127.32(A)(14) All overhead street name signs attached to the mast arms shall be internally illuminated signs. These signs shall be designed and fabricated only by contractors that are included in the FDOT “Approved List of Vendors”.
127.32(B) Materials.
127.32(B)(1) The design of mast arms, poles, and pole foundations shall be in accordance with the “Standard Specifications for Structural Supports for
, Luminaires, and
Signals”, AASHTO, latest edition. All shop drawings shall be signed and sealed by a registered structural
.
127.32(B)(2) Vehicle detector loop wire shall conform to the current International Municipal Signal
specification with the following exceptions:
127.32(B)(2)(a) Loop wire shall be AWG #14 wire stranded 19/27; PVC insulation 0.032 inch thick, nylon jacket 0.010 inch thick, insulation voltage rating 600 volts. Temperature rating shall be 90°C maximum.
127.32(B)(2)(b) Loop and lead-in to the controller cabinet shall be one continuous run with no splices. When splices are necessary, the splice shall be soldered, tapered and an approved waterproof coating applied (Scotch Guard or approved equal).
127.32(B)(3) Video vehicle detection system shall be Video Trak-905 as manufactured by PEEK SYSTEM or approved equal to latest specification from the Broward County
Engineering Division. All video vehicle detection systems shall be approved by the
prior to installation.
127.32(C) Installation.
127.32(C)(1) Pole foundation installations shall be backfilled and compacted to a firm, stable condition equal to or greater than that of the surrounding soil. Where applicable, the pole base shall be finished flush with the adjoining
so as to allow an obstruction-free walking surface.
127.32(C)(2) The pole and mast arms shall be so constructed, connected, and installed that in their final positions the centerline of the signal arm will maintain a clearance above the
of not less than 20.25 feet and not greater than 21.25 feet.
127.32(C)(3) Separate cables shall be installed to each pole including separate cables for pedestrian signals. Poles shall have flush hand-holes, one located near the base and one near the mast arm connection.
127.32(C)(4) A one-inch diameter wire access hole with rubber grommet shall be field drilled and cold galvanized on each signal mast arm by the contractor. Each location shall be the responsibility of the contractor to verify prior to drilling.
127.32(C)(5) The electrical circuits for luminaires and internally illuminated street name
shall be installed in separate conduits.
127.32(C)(6) When steel structures are used, rust protection shall be provided. The rust protection procedure shall be as follows:
127.32(C)(6)(a) After galvanizing but prior to painting, all galvanized surfaces shall be allowed to cool and vent gases produced during the cooling process.
127.32(C)(6)(b) After galvanized surfaces have been allowed to air dry, they shall be cleaned to achieve a “brush blast” condition as defined by SSPC-SP6.
127.32(C)(6)(c) Test galvanizing thickness to ensure sufficient galvanizing remains on the substrate to meet specification.
127.32(C)(6)(d) At the upright base and for a length of two feet, the interior of the pole shall be mechanically cleaned and coated with a zinc-rich epoxy powder 350°F minimum and 400°F maximum.
127.32(C)(6)(e) The exterior surfaces of the pole structure shall be coated with a urethane or triglycidyl isocyanurate (TGIC) polyester powder to a minimum dry film thickness of 2.0 MILS (0.020"). The coating shall be electrostatically applied and cured by heating the steel.
127.32(C)(6)(f) The color of the polyester powder shall be Spartan White or approved equal and similar. Sample chips (two inches by four inches) shall be included with submittals, at least one of which to become the property of Broward County, and at least one to be returned marked “Approved,” if acceptable.
127.32(C)(6)(g) After all coatings have sufficiently cured per manufacturer’s recommendation, poles shall be shipped in protective wrapping of 3/16 inch U.V.-inhibiting plastic backed packing.
(Ord. 2010-20, passed 10-4-2010; Am. Ord. 2019-12, passed 9-23-2019)