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2017-05-10 CC Packet
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2017-05-10 CC Packet
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Exhibit 4-7 Protected Left Turn - Lock Operation — Raised Median <br />CHAPTER 4. DETECTION <br />LOOP DETECTOR PLACEMENT <br />PROTECTED LEFT TURN <br />LOCK OPERATION - RAISED MEDIAN <br />[:IDI -2 ❑ Dl -i �— <br />LOCATION = DISTANCE FROM STOP BAR <br />TO LOOP DETECTOR <br />FRONT LOOP <br />BACK LOOP <br />3 1' <br />' <br />NOTES: <br />1) NO DENSITY FUNCTIONS ARE USED. <br />2) THE DESIGN SPEED IS 2S MPH. <br />•cX31_ •' nolm <br />U R <br />NUMBER FUNCTIO SIZE <br />Di -1 1 1.7 x 1.7m WX 6' <br />Di -2 1 1.7 x 1.7m 6' X 6' <br />3) EACH NUMBERED LOOP DETECTOR SHALL HAVE SEPARATE LEAD-IN CABLE AND SEPARATE <br />AMPLIFIER. <br />4) LOCKING MEMORY SHALL BE USED BY PHASE OR DETECTION FUNCTION. NO CONTROLLER <br />RECALL. <br />5) THIS CONFIGURATION MAY BE CONSIDERED FOR A FYA OPERATION RETRO -FIT PROJECT. <br />FIGURE 6 <br />MnDOT Traffic Control Signal Design Manual 4-32 <br />135 <br />June 2014 <br />
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