The arithmetic mean of the speeds of vehicles observed passing a point on a highway during an interval of time is called?

The 30th-highest hourly volume is usually selected as the design hourly volume (DHV)?

The two most commonly used macroscopic models are the Greenshields and the Greenberg models.

For stopping-sight distance, AASHTO stipulate a perception-reaction time of how many seconds?

The ability to hear and see usually increases after age 65?

The intersection angle (I) of a horizontal curve is 57degrees 25minutes, the degree of curve (Da) is 4degrees, the station at the point of curvature (PCstation) is 225 + 37.56.  Determine the length of the curve (L), and the station at the point of tangency (PTstation). (Please show all work as best as possible and type out anything that you would like to clearly articulate)

The transportation engineering discipline that involves the integration of vehicle, driver, and pedestrian characteristics to improve the safety and capacity of streets and highways is called?

The primary elements of traffic flow are?

The average walking speed used is ________ ft/sec when elderly pedestrian population is higher than 20%.

One of the goals of a transportation engineer is to create the most efficient and cost-effective system, while assuring that the environment is not compromised or destroyed?