LOS
4 Step Model
Complete Streets
Signalized Intersection
All I see are Signs
100
Six categories to describe quality of the road network.
What is level of service?
100
The stage where you determine the percentage of trips that go from one traffic analysis zone to another
Trip Distribution
100
I am the most sensitive pedestrian age group.
Who are the elderly?
100
The green time after considering reaction time and vehicles starting to move.
What is Effective Green Time?
100
I have eight sides, and am red
What is a stop sign?
200
This factor accounts for the percentage of large vehicles on the network.
What is the Heavy Vehicle Factor?
200
The stage in which one determines the total number of trips created and terminated in each Traffic Analysis Zone are calculated
What is Trip Generation
200
One would recommend to use 1 second when calculating this at an intersection with a speed limit of 40 km/h
What is all Red Interval?
200
A signal operation in which detectors exist on every approach to control the occurrence and duration of every phase.
What is a fully actuated signal?
200
The only class of sign that is allowed to be black and white.
What is a regulatory sign?
300
This factor adjusts for the variation in traffic volume within an hour of study.
What is Peak Hour Factor?
300
The option to select from: cars, buses, bikes, or trains.
What is mode choice?
300
a sidewalk extension that provides more space and amenities for people using the street.
What is a parklet?
300
During this left turning movement, traffic turning left is protected from conflict whenever the green arrow is on. However,when just the circular green is on, the left turns must yield to oncoming traffic.
What is a protected-permissive left turn movement?
300
I am intelligent, I am large, I tell people messages on the highway. An operator can change my message with just a few clicks on a computer.
What is a variable message sign?
400
Unstable flow, operating at capacity. Flow becomes irregular and speed varies rapidly because there are virtually no usable gaps to maneuver in the traffic stream and speeds rarely reach the posted limit.
What is level of Service E?
400
This model allocates all users to the path with the lowest travel time (cost) and neglects all other paths
What is All or Nothing Method
400
Complete streets quality of service are determined based upon me.
What is Multi Modal Level of Service?
400
The amount of time a vehicle has spent on a loop.
What is occupancy?
400
The formal transportation name for a sign that is yellow
What is a warning sign?
500
At a intersection, this level of service will result in a delay of 10–20 secs
What is Level of Service B?
500
A model that gives a probability of a driver using any possible route, regardless of how nonsensical it is.
What is a Stochastic Model?
500
Designed and operated to enable safe access for all users, including pedestrians, bicyclists, motorists and transit riders of all ages and abilities.
What is a complete street?
500
The sum of reaction distance and breaking distance.
What is stopping distance?
500
This symbol is found on me.
What is an HOV Lane or HOV sign?
HOT also accepted