Quiz 2

Question 1

Is the study of interactions between travelers (including pedestrians, cyclists, drivers and etc.

Answer 1

Traffic Flow

Question 2

Is the arithmetic mean of speed of all vehicles passing a point during a specified interval of time

Answer 2

Time mean speed

Question 3

Is the harmonic mean of speed of vehicles occupying a relatively long section of street or highway at a given instant.

Answer 3

Space Mean Speed

Question 4

The number of vehicles per unit time passing a point in space and is usually per hour

Answer 4

Flow

Question 5

The number of vehicles counted in a specified time interval.

Answer 5

Volume

Question 6

Is the ratio of the total hourly volume to the maximum rate of flow within the hour

Answer 6

Peak Hour Factor

Question 7

The number of vehicles per unit distance occupying a section of roadway at a given instant time and is usually measured in vehicles per mile or per kilometer.

Answer 7

Density

Question 8

The ratio of the sum of a length of the vehicles to the length of the road section in which those vehicles are present

Answer 8

Occupancy

Question 9

Tha rate of change of distance with respect to time and is usually measured in either miles per hour or feet per second

Answer 9

Speed

Question 10

The reciprocal of speed and is usually measured in minutes per mile.

Answer 10

Rate of travel

Question 11

The time elapsed between common points on succesive vehicle

Answer 11

Headway

Question 12

The time elapsed between a rear of one vehicle to the front of the next.

Answer 12

Gap

Question 13

Distance between the common points on successive vehicle.

Answer 13

Space

Question 14

The distance between a rear of one vehicle to the front of the next.

Answer 14

Clearance

Question 15

Is the term used to describe the average speed that a motorist would travel if there were no congestion or other adverse condtion( bad weather)

Answer 15

Free-flow speed

Question 16

In traffic flow the two most important desities are the…

Answer 16

Critical Density (kc or DO) and Jam Density (Kj or Dj)

Question 17

The maximum density achievable under free flow is

Answer 17

Critical Density

Question 18

The maximum density achieved under congestion 7 times critical

Answer 18

Jam density

Question 19

Is the maximum number of vehicles that can pass a given point on a lane or roadway for one hour, under prevailing roadway and traffic conditions

Answer 19

Maximum Capacity

Question 20

Conducted to collect data on the number of vehicles and pedestrians that pass a point on a highway facility during specified time period.

Answer 20

Volume Studies

Question 21

Average 24hr weekday volume at a given location over a defind time period less than one year.

Answer 21

Average Weekday Traffic (AWT)

Question 22

Average 24hr volume at a given location over a defined time period less than one year.

Answer 22

Average Daily Traffic (ADT)

Question 23

Average 24hr volume occuring on weekdays over a full 365 day year.

Answer 23

Average Annual Weekday Traffic (AAWT)

Question 24

Average 24hr volume at a given location over a full 365 day year.

Answer 24

Average Annual Daily Traffic (AADT)

Question 25

The maximum number of vehicles that pass point on a highway during a period of 60 consecutive minutes.

Answer 25

Peak Hour Volume (PHV)

Question 26

Records Volume with respect to the type of vehicles.

Answer 26

Vehicle Classification (VC)

Question 27

A measure of travel along a section of road. It is product of the traffic volume usually roadway miles.

Answer 27

Vehicle Miles of travel (VMT)

Question 28

Daily volumes can not be used alone fof design or operational analysis purposes.

Answer 28

Hourly Volumes

Question 29

Involves one or more person recording obsrved vehicles using a counter

Answer 29

Manual Method

Question 30

Automatic counters can be classified into 2 the ones laying with detectors and do not require laying

Answer 30

Automatic Method

Question 31

The variation of traffic within a given hour is also of considerable interest

Answer 31

Subhourly Volume

Question 32

When information is required on vehicle accumulation within an area such as the central business in district.

Answer 32

Cordon Counts

Question 33

The study area is divided into large sections by running imaginary lines known as sceen lines accross it.

Answer 33

Screen Line Counts

Question 34

Arw taken to determine vehicle classificationtheough movements and turning movements at intersections.

Answer 34

Intersection Counts

Question 36

Are made at locations such as subways stations, mid blocjs and cross walks.

Answer 36

Pedestrian Volume Counts

Question 37

In order to obtain traffic volume data such as AADT it is necesarry to obtain data continuously

Answer 37

Periodic Volume Counts