Exam (elaborations)
ATSSA TRAFFIC CONTROL SUPERVISOR RE-CERTIFICATION TEST WITH ALL ANSWERS
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ATSSA TRAFFIC CONTROL SUPERVISOR RE-CERTIFICATION TEST WITH ALL ANSWERS
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ATSSA TRAFFICCONTROL SUPERVISOR
RE-CERTIFICATION TEST
WITH ALL ANSWERS
CORRECT
L=(WS²)/60 bfor b40MPH bor bless,
L=WS bfor b45MPH bor bmore b- bcorrect banswer-Formula bfor bMin. btaper blength
The boff bpeak b85th bpercentile. bWhich bis bthe bspeed bat bor bbelow bwhich b85% bof
bvehicles btravel boperating bspeed bin bfree bflow bconditions b- bcorrect banswer-speed
bused bin bformulas bshould bbe
125' b- bcorrect banswer-Distance bof bL bfor b25 bMPH bwith b12' bLane bwidth
245' b- bcorrect banswer-Distance bof bL bfor b35 bMPH bwith b12' bLane bwidth
540' b- bcorrect banswer-Distance bof bL bfor b45 bMPH bwith b12' bLane bwidth
, 660' b- bcorrect banswer-Distance bof bL bfor b55 bMPH bwith b12' bLane bwidth
780' b- bcorrect banswer-Distance bof bL bfor b65 bMPH b12' bLane bwidth
L bMinimum b- bcorrect banswer-Merging bTaper bLength
1/2 bL bMinimum b- bcorrect banswer-Shifting bTaper bLength
1/3 bL bMinimum b- bcorrect banswer-Shoulder bTaper bLength
50'-100' bregardless bof bspeed
6 bdevices b10'-20' bapart b- bcorrect banswer-One-Lane, bTwo-Way bTaper b(Flagger
btaper) bLength band bnumber bof bdevices
50'-100' bper blane b- bcorrect banswer-Downstream btaper bLength
2L b- bcorrect banswer-Tangent bdistance b(between btapers)
1/2L b- bcorrect banswer-Tangent bdistance bbefore bshifting btaper
Buffer bSpace
Work bSpace
Traffic bSpace b- bcorrect banswer-Activity bArea bSub-components b(3)
Recovery bArea bfor berrant bvehicles: bForgiving bdesign
Protects bworkers band bMotorists
Always bcompletely bempty bor bclear
No bvehicles, btruck-mounted battenuator, bequipment, bor bmaterials
STRONGLY bRECOMMENDED: bunless bthere bis ba bdocumented breason bnot bto b-
bcorrect banswer-Longitudinal bBuffer bSpace
Where broad busers bare breturned bto btheir bnormal bpath
extends bfrom bthe bdownstream bend bof bthe bwork barea bto bthe blast bdevice bsuch
bas bend bwork bzone bsign
May bcontain:
end bwork bzone bsign: busually b500' bpast blast bdevice
downstream btaper b= b50'-100' bper blane b- bcorrect banswer-Termination bArea bis:
can bcontain: b(2)
100' b- bcorrect banswer-Recommended bAdvanced bWarning bSign bSpaceing: bUrban
b(low bspeed)
350' b- bcorrect banswer-Recommended bAdvanced bWarning bSign bSpaceing: burban
b(high bspeed)
500' b- bcorrect banswer-Recommended bAdvanced bWarning bSign bSpaceing: bRural
1000', b1500', band b2640' b- bcorrect banswer-Recommended bAdvanced bWarning
bSign bSpaceing: bfreeways band bexpressways b(3)
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