EXAM STUDY GUIDE 2026/2027
COMPLETE QUESTIONS WITH
VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Formula for Min. taper length - ANSWER ✔ L=(WS²)/60 for 40MPH or
less,
L=WS for 45MPH or more
2. speed used in formulas should be - ANSWER ✔ The off peak 85th
percentile. Which is the speed at or below which 85% of vehicles travel
operating speed in free flow conditions
3. Distance of L for 25 MPH with 12' Lane width - ANSWER ✔ 125'
4. Distance of L for 35 MPH with 12' Lane width - ANSWER ✔ 245'
5. Distance of L for 45 MPH with 12' Lane width - ANSWER ✔ 540'
6. Distance of L for 55 MPH with 12' Lane width - ANSWER ✔ 660'
, 7. Distance of L for 65 MPH 12' Lane width - ANSWER ✔ 780'
8. Merging Taper Length - ANSWER ✔ L Minimum
9. Shifting Taper Length - ANSWER ✔ 1/2 L Minimum
10.Shoulder Taper Length - ANSWER ✔ 1/3 L Minimum
11.One-Lane, Two-Way Taper (Flagger taper) Length and number of devices -
ANSWER ✔ 50'-100' regardless of speed
12.6 devices 10'-20' apart
13.Downstream taper Length - ANSWER ✔ 50'-100' per lane
14.Tangent distance (between tapers) - ANSWER ✔ 2L
15.Tangent distance before shifting taper - ANSWER ✔ 1/2L
16.Activity Area Sub-components (3) - ANSWER ✔ Buffer Space
Work Space
Traffic Space
17.Longitudinal Buffer Space - ANSWER ✔ Recovery Area for errant vehicles:
Forgiving design
Protects workers and Motorists
Always completely empty or clear