Traffic Bowl
"Its purpose is to promote highway safety and efficiency by providing for the orderly movement of all road users on streets, highways, bikeways, and private roads open to public travel throughout the Nation"
What is a traffic control device
This type of crash often increases after the installation of a traffic signal.
What are rear end crashes
This regulatory sign is used for traffic control to assign Right of Way on roundabout approaches.
What is a Yield sign
This color represents recreational and cultural interest area guidance.
What is brown
This type of study assesses the transportation needs and traffic impacts of a development on the surrounding roadway network
What is a Traffic Impact Study
This factor is defined as the ratio of total hourly volume to the peak 15 minute flow rate within the hour.
What is the Peak Hour Factor
Two of the three types of delay that make up control delay for a given lane group.
What are uniform delay, incremental delay, and initial queue delay
AADT
What is Annual Average Daily Traffic
TTC
What is Temporary Traffic Control
Two assessment or management methods used to maintain sign retroreflectivity.
What is Visual Nighttime Inspection, Measured Sign Retroreflectivity, Expected Service Life, Blanket Replacement, and Control Signs
Two of the three levels of driver information needs.
What are control, guidance, and navigation
These should be provided on roads with an ADT greater than 6,000 vpd and over 20' in width.
What are centerlines
In some neighborhoods, traffic is too "excited" and must undergo this process.
What is Traffic Calming
In order to prevent vehicles from being stuck on railroad crossings at signalized intersections, this priority phasing is coded in the signal controller.
What is railroad pre-emption
ITS
What is Intelligent Transportation System
ITE
What is Institute of Transportation Engineers?
This is reached when the product of density and speed results in the maximum flow rate.
What is Capacity
This is the scientific application of proven safety information to the natural environment in order to improve the transportation system.
What is engineering
This color has been proposed to indicate facilities or lanes that are allowed to be used only by vehicles equipped with electronic toll collection (ETC)
What is Purple
This sign has a octagon shape
What is a Stop sign
This occurs when a permissive left turn is followed by a protected left turn movement for the opposing approach.
What is a left-turn trap
This type of pavement marking indicates a permissive condition.
What is a broken line
This type of marking includes centerlines, lane lines, and edge lines.
What is longitudinal
This type of marking provides guidance or warning of a downstream change in lane function.
What is a dotted line
This type of taper shall be at least 0.5L
What is a Shifting Taper
AASHTO
What is American Association of State Highway and Transportation Officals
ARRA
What is the American Recovery and Reinvestment Act
An alternative to a traffic signal at an intersection.
What is a roundabout
A portion of a roadway that has been designated by signs and pavement markings preferential or exclusive use by bicyclists.
What is a bike lane
A retroreflective device mounted above the roadway surface and along the side of the roadway to indicate the alignment of the roadway.
What is a delineator
A signalized four leg intersection has this many conflict points.
What is 32 conflict points
A device used for determining the presence or passage of vehicles or pedestrians.
What is a Detector
A non-attended toll lane that is restricted to use only by vehicles with a registered toll payment account.
What is Electronic Toll Collection (ETC) Account-Only Lane
Alert road users to conditions that might call for a reduction of speed or an action in the interest of safety and efficent traffic operations.
What is the purpose of warning signs
A mathmatical equation established by research and practical efforts that represents some aspect of traveler behavior.
What is a model
A roadway feature intended to awaken the driver before they run off the road.
What are rumble strips
A transportation technology that enhances the safety and efficiency of vehicles and roadway systems.
What is Intelligent Transportation System (ITS)
A specific type of signal head that displays a timer to clear an intersection.
What is a countdown pedestrian signal head
An interval that follows a yellow change interval and precedes the next conflicting green interval.
What is clearance interval
ADT of a very low-volume local road.
What is less than or equal to 400
According to MUTCD, an additional plague, red or orange flags, diagonal striped borders around the sign, vertical retroreflectivity on the sign support or a supplement beacon.
What are examples of enhanced conspicuity for signs
A characteristic of a roadside appurtenance that has been successfully crash tested in accordance with a national standard such as the National Cooperative Highway Research Program Report 350, "Recommend Procedures for the Safety Performance Evaluation of Highway Features"
What is crash worthy
A light type fixture used only to supplement an appropriate warning or regulatory sign or marker
What is a warning beacon
A pavement marking that are placed perpendicular and across the flow of traffic such as shoulder markings, word, symbol and arrow markings, stop lines, etc.
What are transverse markings
SRTS
What are safe routes to school
Four of the five colors defined by the MUTCD as pavement marking colors.
What are yellow, white, red, blue, or purple
Fluorescent pink is allowed on this type of sign.
What is incident management
FHWA
What is Federal Highway Administration
Number of correctible crashes within a 12 month period to meet Warrant 7, Crash Experience for a traffic signal outlined in the MUTCD.
What is five or more
FTA
What is Federal Transit Administration
Virginia is part of this ITE District
What is southern district
VaWAPM
What is Virginia Work Area Protection Manual
VMI
What is Virginia Military Institute
VDOT
What is Virginia Department of Transportation
VaSITE
What is Virginia Section Institute of Transportation Engineers
The quality of signal protection for the corresponding movement group. Computed as the demand flow rate during the green indication divided by the average demand flow rate.
What is a platoon ratio
ITE decided to chance its name from "Traffic" to "Transportation" in this decade.
What is the 1970s