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CHAPTER 4. DETECTION <br />Exhibit 4-6 Protected Permissive and FYA Left Turn — Separate Left Turn Lane <br />TT uLF MT <br />PROTECTED/PERMISSIVE AND <br />FLASHING YELLOW LEFT TURN <br />SEPARATE LEFT TURN LANE <br />D1-2 2.7m (9') - TYP. FOR PRESENCE DETEL I ION <br />D1-1 <br />LOOP DETECTOR FUNGI IONS <br />1 = CALL AND EXTEND <br />NUMBER <br />FUNCTION <br />SIZE <br />LOCATION <br />D1-1 <br />1 <br />2 <br />-1.7 x 1.7m <br />(6' X 6') <br />6m (20') <br />& 15m (50') <br />D1-2 <br />1 <br />2 <br />-1.7 x 1.7m <br />(6' X 6') <br />1.5m (5') <br />& 11m (35') <br />LOCATION = DISTANCE FROM STOP BARTO LOOP DETECTOR <br />NOTES: <br />1) CONTROLLER PHASE AND DETECTOR FUNGI ION SHALL BE NON -LOCK MEMORY WITH NO RECALL. <br />2) USE BACK UP PROTECTION TO PREVENT LEFT TURN TRAP IF THERE ARE OPPOSING LEFT TURNS. <br />3) DESIGN SPEED IS 25 MPH. <br />4) EACH NUMBERED LOOP DETECTOR SHALL HAVE A SEPARATE LEAD-IN CABLE AND SEPARATE <br />AMPLIFIER. <br />5) IF USING NMC LOOPS, A SINGLE LARGER LOOP CAN REPLACE THE DUALS. <br />6) DETECTOR CROSS SWITCHING MAY BE USED. <br />7) USE THIS FIGURE IF INSTALLING A FLASHING YELLOW ARROW (FYA). <br />FIGURE 5 <br />MnDOT Traffic Control Signal Design Manual 4-31 <br />June 2014 <br />