ATSSA Traffic Control Supervisor Re-certification 100% VERIFIED ANSWERS

ATSSA TRAFFIC CONTROL SUPERVISOR RE-CERTIFICATION 100% VERIFIED
ANSWERS



1. L=(WS²)/60 for 40MPH or less, iv iv iv iv




L=WS for 45MPH or more
iv iv iv iv




..ANS>> Formula for Min. taper length
iv iv iv iv iv




2. The off peak 85th percentile.Which is the speed at or below which 85% of vehicles travel operating
iv iv iv iv iv iv iv iv iv iv iv iv iv iv iv iv iv




speed in free flow conditions
iv iv iv iv iv




..ANS>> speed used in formulas should be
iv iv iv iv iv iv




3. 125'

..ANS>> Distance of L for 25 MPH with 12' Lane width
v iv iv iv iv iv iv iv iv iv




4. 245'

..ANS>> Distance of L for 35 MPH with 12' Lane width
iv iv iv iv iv iv iv iv iv iv

, 5. 540'

..ANS>> Distance of L for 45 MPH with 12' Lane width
iv iv iv iv iv iv iv iv iv iv




6. 660'

..ANS>> Distance of L for 55 MPH with 12' Lane width
i v iv iv iv iv iv iv iv iv iv




7. 780

..ANS>> Distance of L for 65 MPH 12' Lane width
iv iv iv iv iv iv iv iv iv




8. L Minimum
iv




..ANS>> Merging Taper Length
v iv iv




9. 1/2 L Minimumiv iv




..ANS>>Shifting Taper Length iv iv




10. 1/3 L Minimum iv iv




..ANS>> Shoulder Taper Length
v iv iv




11. 50'-100' regardless of speed iv iv iv