standard construction details - The Management System Parking Lot

SAW BLADE(1/4" WIDE)LOOP DETECTOR INSTALLATION DETAILS#14 AWG XHHW WIRE2" SAW CUT1"MINIMUM SEALANTLOOP DETECTOR SPLICING DETAILS2-SECTION LATERAL LOOP DETECTOR PAD2-SECTION LONGITUDINAL LOOP DETECTORTYPICALSAW CUT2"NO MORE THAN 4 #14AWG XHHWWIRES SHALL BE PLACEDIN ONE SAW CUT.FRONTSECTIONFOUNDATIONOR PULLBOXDETECTORHARNESS20’ FRONTSECTIONFOUNDATION OR PULLBOXDETECTORHARNESS1/4"EXPANSION JOINT SAG JOINTTYPE 1 LOOPWHEN INDIVIDUAL LATERAL LOOP SECTIONSARE TIED TOGETHER ON THE SAME DETECTOR1. INSTALLATION OF LOOP DETECTORS IS TO BE MADE INTHE SHORTEST TIME PRACTICAL (NOT TO EXCEED4 HOURS MAX) AND SCHEDULED DURING OFF PEAKBACKSECTIONPARALLELCONNECTIONCONTROLLERCABINET20’ BACKSECTIONCONTROLLERCABINET1’-0"(TYPICAL FORALL CORNERS)60^TYPE 2 LOOP60^6’6’6’60^NOMINAL NOMINALHARNESS TO FORM A DETECTOR PAD. THESPACING BETWEEN INDIVIDUAL LOOP SECTIONSSHALL BE AS SHOWN BELOW.10’10’HOURS TO MINIMIZE DELAY TO TRAFFIC.2. SAW CUTS ARE TO BE MADE WITH A CONCRETESAW , FORMING STRAIGHT LINES WITH LOOSEMATERIAL REMOVED. THE CUT SHALL BECLEAN AND DRY WHEN THE SEALING COMPOUNDIS PLACED. WHEN A SAWCUT CROSSESA TRANVERSE EXPANSION JOINT, LOWER THEDEPTH BY 2" WHEN THE SAW IS CENTEREDOVER THE EXPANSION JOINT.3. WIRING OF TYPE 1, 2 AND 4 LOOPS ONLY --LOOPS SMALLER THAN 6’ X 20’ SHALLHAVE 3 TURNS OF #14 AWG XHHW WIRE.POWERHEADS OF TYPE 2 AND TYPE 4 LOOPSSHALL HAVE 2 ADDITIONAL TURNS.3-SECTION LATERAL LOOP DETECTOR PADFOUNDATIONFRONTOR PULLBOXSECTIONCONTROLLERCABINETMIDDLEDETECTORSECTIONHARNESSBACKSECTIONSERIESCONNECTION50’ BACK 20’ FRONTSECTION SECTIONLEGEND2-SECTION LEFT TURN QUADRAPLOLELOOP DETECTOR PAD (EC-DC OPERATION)FOUNDATIONOR PULLBOXDETECTORHARNESSDETECTORHARNESSCONTROLLERCABINET4. WIRING OF TYPE 3 LOOPS ONLY --QUADRAPOLE LOOPS 6’X20’ & SMALLER SHALL#14 AWG XHHW LOOP WIRE2 CONDUCTOR SHIELDED CABLETYPE 3 LOOPHAVE 2 TURNS (2-4-2) OF #14 XHHW WIRE.QUADRAPOLE LOOPS WITH NOMINAL LENGTHSWATERTIGHT SOLDERED CONNECTION OF #14 AWG XHHWWIRE AND 2 CONDUCTOR SHIELDED CABLEOVER 20’ SHALL HAVE 1 TURN (1-2-1) OF1’-0"60^TYPE 4 LOOP45^ CUT TO PREVENTWIRE DAMAGE (APPROX. 2’)6’6’6’60^NOMINAL NOMINALLONGITUDINAL EC-DC TYPE QUADRAPOLE LEFTTURN LOOP DETECTOR PADS SHALL HAVE A 10’SPACING BETWEEN INDIVIDUAL LOOP SECTIONS10’#14 AWG XHHW WIRE.5. SEALANT SHALL NOT EXTEND MORE THAN 1 1/2"ON EITHER SIDE OF SAW CUT. CONTRACTOR SHALL BEREQUIRED TO REMOVE EXCESS SEALANT BEFORE LOOP WILLBE CONSIDERED COMPLETE.DETAILS OF SMALL PULL BOXTOP VIEWTRAFFICSIGNALPULL BOXPULL BOX INSTALLATION DETAILSDETAILS OF LARGE PULL BOXTOP VIEW3" (TYPICAL)6" (TYPICAL)3" (TYPICAL)TRAFFIC SIGNAL4" THICKPULL BOX(TYPICAL FOR(12"X12"X12")CONCRETE(13"X24"X12")ALL CORNERS)PADNOTE: ALL OF THE ABOVE LOOP TYPES HAVE VARIABLE LENGTHSNO. 3 REBAR(TYPICAL)NO. 3GROUNDGROUNDNO. 3REBARPULL BOX LIDLEVELLEVELPULL BOX LIDREBARPULLPULLBOXBOXLOOP DETECTOR RUN DETAILS(12"X12"X12")(13"X24"X12")OVERHEAD DETECTOR RUN DETAIL12" MIN2" MINSTEEL POLESTRAIN WIREDETECTOR RUN INTO PULL BOX DETAILCONDUITWOOD POLE" X 1 4COARSE COMPACTED ROCKCOARSE COMPACTED ROCK(DETERMINED BY THE ENGINEER)VARIABLE DISTANCEWEATHERHEADSTEEL OR WOODPOLE2 CONDUCTORSHEILDED CABLE1 1/2" RIGIDMETAL CONDUITSPACING BETWEEN CONDUITMOUNTINGBRACKETS APPROX. 5’4"X4"X4"SPLICE CAN2 CONDUCTORSHIELDED CABLE2" CONDUIT1" RIGID METAL CONDUITGROUND LEVEL PULL BOX24"MIN.SEAL HOLE WITH WATERPROOFCAULK OR SEALANTSAW OUT#14 AWG DETECTORLOOP LEAD - IN WIRED R I L L 1THROUGH CURB18"MIN.MINIMUM DEPTH OF 18"NOTE:ALL CONCRETE SHALL BE EITHER CLASS A OR CLASS CAS DEFINED IN THE NORTH CENTRAL TEXAS COUNCIL OFGOVERMENTS’ "STANDARD SPECIFICATIONS FOR PUBLICWORKS CONSTRUCTION" ITEM 7.4.5.MINIMUM DEPTH OF 18"APPROVEDDIRECTOR OF PUBLIC WORKS & TRANSPORTATIONDATE:TRAFFIC SIGNAL DETAILSGROUND LEVEL18"#14 AWGXHHW WIREFROM LOOP DETECTORNOTE:COARSE COMPACTED ROCKSOLDER ALL CONNECTIONS AND SEAL THEMWITH A WATERTIGHT WRAPPINGDEPARTMENT OF PUBLIC WORKS & TRANSPORTATIONCITY OF DALLAS, TEXASDESIGN DRAWN DATE FILE NO. PAGE NO.1" RIGID METAL CONDUITAPRILC.O.D. A.B.&A. 251D 119975012