AASHTO American Association of State Highway and Transportation Officials
TERM LOCATION
ACTIVITY AREA
TERM LOCATION
ADVANCE WARNING AREA
Nature of the work
access requirements
drainage issues, drainage during construction
Constructability construction equipment
size of work space
Access to work area
room to maneuver equipment
Daytime work 1 to 12 hours Short-term stationary (MUTCD work duration category)
cones and portable signs
, What stage:
Design Select best traffic control alternative
based on: safety, mobility, cost, constructability
DETERMINE A TAPER Length x Width x Speed
Do specials contract provisions govern yes
over the MUTCD?
Downstream Tapper Length 50 to 100 feet
Any condition where a high probability exists that an accident may occur that
imminent danger
will result in death or serious physical harm.
Institute of Transportation Engineers
ITE
Need to be pinned down or allow for a
minimum of 2' deflection
lateral deflection of barrier rail
TERM LOCATION
LONGITUDINAL BUFFER SPACE