Answer to Question #114749 in Algebra for ANJU JAYACHANDRAN

Question

In the following figure we give the average hourly volume of traffic entering and
leaving a section of a city. Determine the amount of traffic between each of the 4
intersections A, B, C and D.
(Note: The number of vehicles entering an intersection should be the same as the
number leaving.)

Answer 1

Here are 3 quick ways to estimate daily traffic without a traffic counter or speed trailer. Combined with your own knowledge of traffic you can get some pretty good estimates quickly. Note that a full study with a traffic counter is recommended for any detailed study or when determining if you meet a warrant in the Manual on Uniform Traffic Control Devices (MUTCD). Also, if there are seasonal differences a more detailed study may be needed.

Take a 15-minute count during the busiest time of day. Convert that to a daily count using the following formula

• Daily traffic = C*F
• C = 15-minute count
• F = multiplier based upon area:
• 36 in urban area;
• 33 in suburban area;
• 27 in rural area
• As an example, if the count is 106 cars in 15 minutes in a suburban area, the daily count would be 3,500 (106*33=3,498).
• These approximations only work if there is free flowing traffic (not a traffic jam)