A railroad track is crossed by a minor street that intersects a major street that runs parallel to the railroad track. There is a concern about queuing of minor street traffic, controlled by a STOP sign at the intersection with the major street, backward onto the track. Determine whether this intersection meets MUTCD Warrant 9, given the following data below:
? Major street peak hour volume (two-way): 320 veh/h
? Minor street peak hour volume (on the one-lane approach that crosses the
tracks): 120 veh/h; 6% of which are tractor-trailer trucks; bus traffic is
negligible
? Rail traffic is an average of 8 trains per day distributed in a scattered
manner throughout the day
? The distance on the minor street between the nearest rail of the track and the
STOP line at the intersection with the major street is 96 ft.
What will be an ideal response?
a) Condition A: distance on the minor street between the nearest rail of the track and
the STOP line at the intersection with the major street is 96 ft < 140 ft. Condition
A is met.
b) Condition B:
- Table 8.3: Adjustment factor = 1.18
- Table 8.4: Adjustment factor = 1.00
- Table 8.5: Adjustment factor = 0.75
- Adjusted minor street volume: 120 veh/h × 1.18 × 1.00 × 0.75 = 106.2
veh/h
- Figure 8.10: D = 90ft. the line plotted by 320 veh/h and 106 veh/h falls
above the curve. Warrant 9 is satisfied.
You might also like to view...
The purpose of the quartz sleeve in an ultraviolet-light system is to _____.
a. react chemically with the ultraviolet light to create chlorine ions b. act as a water filter c. prevent contaminants in the water from settling on the lamp and reducing its efficiency d. prevent the water in the disinfecting chamber from cooling the lamp
The less difficult it is to enter the task environment of an industry, the higher are the barriers
to entry to this environment.
Indicate whether the statement is true or false.To prevent one amplifier's bias voltage from affecting the operation of the second amplifier, a(n) ____________________ technique must be used.
Fill in the blank(s) with the appropriate word(s).
Which of the following is NOT a limitation of using infrared wireless systems?
A. they lack mobility B. they use a line-of-sight principle C. someone can easily eavesdrop from another room D. diffused transmissions have a range of 50 feet