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- TEMPORARY TRAFFIC CONTROL. PLAN DIMENSION GUIDELINES <br /> SPEED Dimension Dimension Dimension Dimension Dimension MAXIMUM 31:4-a! SUM MAXIMUM <br /> MPH A/B/C L L/2 L/3 "E" CHANNELIZER CHANNELIZER ? CHANNELIZER <br /> (2) ADVANCE 9 MERGING SHIFTING MINIMUM BUFFER SPACE(4-A) TAPER SPACING ''''GENT CONFLICT <br /> WARNING SIGN 9 TAPER TAPER LENGTH SHOULDER and (3) PACING SPACING <br /> SPACING(5) _ENGTH TAPER FLAGGER STATION [ (f) <br /> STOPPING SIGHT <br /> DISTANCE(4-B) <br /> (0%) (-3%) (-6%) <br /> MPH Ft ft ft ft ft ft f ftp <br /> 25 100 125 65 45 (155) (160) (165) 25 50 12 <br /> 30 250 180 90 60 (200) (205) (215) 30 15 <br /> 35 250 245 125 85 (250) (260) (275) 35 70 17 <br /> 40 250 320 160 110 ° (305) (315) (335) 40 80 20 <br /> 45 -^350 540 270 180 (360) (380) (400) 45 90 22 <br /> 50 350 600 300 200 (425) (450) (475) 50 100 25 <br /> 55 500 660 330 220 (495) (520) (555) 50 i' 1 25 I <br /> 60 500 _ 720 360 240 (570) (600) (640) 50 .11(30 25 <br /> 65 500 _780 390 260 (645) (685) (730) 5000 25 <br /> {1) Work on Freeways anc FExpressways shall meet the Caltrans Standard Plans and Standard Specification requirements.. <br /> i <br /> (2) Posted Speed or ed operating speed (whichever is greater). <br /> (3) 'I� Channelizer spacer <-.-:4 be reduced by half at areas where work is taking place on curves or areas of head-on conflict, <br /> (4-,4) Buffer space may 0 Yrted in low-speed urban areas and should be inserted in high-speed urban and rural areas. <br /> (4-13) I Tire Stopping Sight Dtstance should enable Road Users to see the Primary Flagger Station and safely stop. <br /> (5) Sign spacing in rur_r: _rs should be 500 ft. <br /> 161 *°Table 6F-101{CA. _ . <br />