Terms in this set (53)
1/2L Tangent distance before shifting taper
1/2 L Minimum Shifting Taper Length
how far should a PCMS be visible?
1/2 mile visibility day and
night Portable changeable message sign
1/3 L Minimum Shoulder Taper Length
Arrow board visibility distance by design:
night time dimming:
1 Mile location:
50%
shoulder at beginning of
taper if possible, if not, as
close to beginning as
possible inside taper.
2L Tangent distance (between tapers)
, All workers, including emergency responders, within
the right-of-way who are exposed either to
traffic (vehicles using the highway for purposes of
travel) or to work vehicles and construction equipment
within the TTC zone shall wear high-visibility safety
2 or 3 apparel that meets the Performance Class ___ or ___.
18:1 Typical Flare Rates for Barrier Rail - 60 MPH
20:1 Typical Flare Rates for Barrier Rail - 70 MPH
50'-100' per lane Downstream taper Length
One-Lane, Two-Way Taper (Flagger taper) Length and
50'-100' regardless of number of devices
speed
6 devices 10'-20' apart
60" Proper width for pedestrian pathway:
Recommended Advanced Warning Sign Spaceing:
100' Urban (low speed)
125' Distance of L for 25 MPH with 12' Lane width
Distance of L with 12' Lane Width for:\
125' 245' 540' 660' 780' 25, 35, 45, 55, 65 MPH
245' Distance of L for 35 MPH with 12' Lane width
1/2L Tangent distance before shifting taper
1/2 L Minimum Shifting Taper Length
how far should a PCMS be visible?
1/2 mile visibility day and
night Portable changeable message sign
1/3 L Minimum Shoulder Taper Length
Arrow board visibility distance by design:
night time dimming:
1 Mile location:
50%
shoulder at beginning of
taper if possible, if not, as
close to beginning as
possible inside taper.
2L Tangent distance (between tapers)
, All workers, including emergency responders, within
the right-of-way who are exposed either to
traffic (vehicles using the highway for purposes of
travel) or to work vehicles and construction equipment
within the TTC zone shall wear high-visibility safety
2 or 3 apparel that meets the Performance Class ___ or ___.
18:1 Typical Flare Rates for Barrier Rail - 60 MPH
20:1 Typical Flare Rates for Barrier Rail - 70 MPH
50'-100' per lane Downstream taper Length
One-Lane, Two-Way Taper (Flagger taper) Length and
50'-100' regardless of number of devices
speed
6 devices 10'-20' apart
60" Proper width for pedestrian pathway:
Recommended Advanced Warning Sign Spaceing:
100' Urban (low speed)
125' Distance of L for 25 MPH with 12' Lane width
Distance of L with 12' Lane Width for:\
125' 245' 540' 660' 780' 25, 35, 45, 55, 65 MPH
245' Distance of L for 35 MPH with 12' Lane width
