TRANSPO Flashcards
Number of vehicles in a given length of road at an instant point
Density
Harmonic mean of speeds of vehicles passing a point on highway during an interval of time
Space Mean Speed
Arithmetic mean of speeds of vehicles passing a point within a given interval of time
Time Mean Speed
Acts in a horizontal direction radially outward. It has a tendency to push the vehicle off the road in an outward direction
Centrifugal Force
The outer end of the road is raised above the inner and such that the resultant becomes normal to the road surface for a given speed
Super Elevation
Total distance traveled during three time intervals:
*The time for the driver to perceive hazard
*The time to react
*The time to stop the vehicle after the brakes are applied
Stopping Sight Distance
Protects walls for quay and wharves for retaining and protecting embankments or retaining wall
Quaywall or Bulkhead
The number of vehicles moving in a specified direction on a given lane or roadway that pass a given point during specified unit time and is usually expressed as vehicles per hour or vehicles per day
A. Traffic Volume
B. Traffic Capacity
C. Traffic Density
D. Basic Capacity
A
The ability of a roadway to accommodate traffic volume. It is expressed as the maximum number of vehicle in a lane or a road that can pass a given point in unit time, usually an hour, that is vehicle per hour per lane or roadway
A. Traffic Volume
B. Traffic Capacity
C. Traffic Density
D. Basic Capacity
B
The maximum number of passenger cars that can pass a given point on a lane or roadway during one hour under the most nearly ideal roadway that traffic conditions which can possible be attained.
A. Traffic Volume
B. Traffic Capacity
C. Traffic Density
D. Basic Capacity
D
The maximum number of passenger cars that can pass a given point on a lane or roadway during one hour under prevailing roadway and traffic conditions
A. Possible Capacity
B. Practical Capacity
C. Basic Capacity
D. Theoretical Maximum Capacity
A
The maximum number of vehicles that can pass a given point on a lane or roadway during one hour without traffic density being so great as to cause unreasonable delay, hazard, or restrictions to the driver’s freedom to maneuver under the prevailing roadway and traffic conditions
A. Practical Capacity
B. Possible Capacity
C. Traffic Capacity
D. Theoretical Capacity
A
The crossing of two o more traffic streams traveling in the same general direction along a significant path of highway without the aid of traffic signals
A. Crossover
B. Cross Moving
C. Weaving
D. Permanence
C
The instantaneous speed of a vehicle at a specified or location
A. Average Speed
B. Running Speed
C. Travel Speed
D. Spot Speed
D
The average of the spot speeds of all vehicles passing a given point in the highway
A. Average Speed
B. Running Speed
C. Travel Speed
D. Spot Speed
A
The average speed of vehicles in a certain road length at any time
A. Instantaneous Speed
B. Average Speed
C. Space Mean Speed
D. Spot SPeed
C
The speed distribution of vehicles at a point on the roadway and it is the average of instantaneous speeds of observed vehicles at the spot
A. Instantaneous Speed
B. Average Speed
C. Space Mean Speed
D. Time-Mean Speed
D
The average speed maintained by a vehicle over a particular stretched of road, while the vehicle is in motion. This is obtained by dividing the distance covered by the time during which is in motion.
A. Spot Speed
B. Running Speed
C. Travel Speed
D. Space-mean Speed
B
The time interval between the passage of successive vehicles moving in the same lane and measured from head to head as they pass a point on the road
A. Time Headway
B. Time of Travel at a Spot Speed
C. Time of Travel at a Time Mean Speed
D. Time of Travel at a Space-Mean Speed
A
The distance between successive vehicles moving in the same lane measured from head to head at any instance
A. Space-Headway
B. Sight distance
C. Clear Spacing Between vehicles
D. Space Between Vehicles
A
The distance ahead that must be clear to permit safe spacing
A. Passing Sight Distance
B. Sight Distance
C. Non-Passing Distance
D. Braking Distance
A