PTOE Exam - Module 2
Uninterrupted Flow - correct answer ✔✔Vehicles are
not interrupted by external factors
such as traffic signals, Stop or Yield
signs, or frequent driveway access
points. Uninterrupted flow occurs
on freeways and rural highways with
long segments between controlled
intersections
Interrupted Flow - correct answer ✔✔Vehicle flow on
interrupted flow facilities is
influenced by external factors such as
traffic signals, Stop or Yield signs, or frequent uncontrolled intersections or high
volume driveways. Interrupted flow occurs on urban streets.
What are the three parameters used to describe a traffic stream in uninterrupted flow facilities? - correct
answer ✔✔-Flow Rate
-Speed
-Density
Define Volume: - correct answer ✔✔The number of vehicles that pass a point on a roadway, lane, or a
direction per roadway unit of time
Define peak hour factor - correct answer ✔✔The relationship between the hourly volume and the
maximum rate of flow within the hour
Peak Hour Factor Formula - correct answer ✔✔Hourly Volume / (4 x Peak 15 Minute Volume)
Uninterrupted Flow - correct answer ✔✔Vehicles are
not interrupted by external factors
such as traffic signals, Stop or Yield
signs, or frequent driveway access
points. Uninterrupted flow occurs
on freeways and rural highways with
long segments between controlled
intersections
Interrupted Flow - correct answer ✔✔Vehicle flow on
interrupted flow facilities is
influenced by external factors such as
traffic signals, Stop or Yield signs, or frequent uncontrolled intersections or high
volume driveways. Interrupted flow occurs on urban streets.
What are the three parameters used to describe a traffic stream in uninterrupted flow facilities? - correct
answer ✔✔-Flow Rate
-Speed
-Density
Define Volume: - correct answer ✔✔The number of vehicles that pass a point on a roadway, lane, or a
direction per roadway unit of time
Define peak hour factor - correct answer ✔✔The relationship between the hourly volume and the
maximum rate of flow within the hour
Peak Hour Factor Formula - correct answer ✔✔Hourly Volume / (4 x Peak 15 Minute Volume)
