MUTCD
Definitions
Fundamentals
SCRABBLE
ACRONYMS
100

This circular sign has an X with two Rs on it

What is Railroad Crossing Sign?

100

When two separate traffic streams join to form a single stream

What is Merging?
100

The number of vehicles crossing a detector during a given time period

What is Flow?

100

YTISNED

What is Density?

100

NHS

What is National Highway System?

200

Color used to designate handicapped parking spaces

What is Blue?

200

Time difference between one point on front vehicle and same point on rear vehicle

What is Headway?

200

Density at which all movement stops; maximum density under congestion

What is Jam Density?

200

SKILDAEW

What is Sidewalk?

200

RTOR

What is Right Turn on Red?

300

Shape used for warning signs in the MUTCD

What is Diamond?

300

Person driving or riding a vehicle

What is Occupant?

300

When traffic density increases beyond the point of maximum flow, this type of traffic condition begins to occur

What is congestion?

300

RWANNIG GINS

What is Warning Sign?

300

AWDT

What is Average Weekday Daily Traffic?

400

Color used to increase bike lane visibility

What is Green?

400

Area immediately beyond the divergence of two roadbeds bounded by edges of those roadbeds

What is Gore?

400

When traffic flow reaches the greatest number of vehicles that can pass a point on a roadway during a given period, the roadway has reached this condition

What is capacity?

400

CBYILEC ENAL

What is Bicycle Lane?

400

FHWA

What is Federal Highway Administration?

500

MUTCD stands for

What is Manual on Uniform Traffic Control Devices?

500

This is the average time required for a vehicle to travel through a defined roadway segment, including any delays experienced along the way

What is travel time?

500

This type of intersection allows traffic to move through the intersection without stopping for a traffic signal by using a circular roadway aorund a central island

What is a roundabout?

500

EACRTLACIONE

What is Acceleration?

500

AASHTO

What is American Association of State Highway Transportation Officials?

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