6.8 Consider Example 6.2, in which it was determined that 1908 vehicles could be added to the peak hour before capacity

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6.8 Consider Example 6.2, in which it was determined that 1908vehicles could be added to the peak hour before capacity isreached. Assuming rolling terrain as in Example 6.1, how manypassenger cars could be added to the original traffic mix beforepeak-hour capacity is reached? (Assume only passenger cars areadded and that the number of large trucks and buses originally inthe traffic stream remains constant.)
6.1 (REFERENCE) A six-lane freeway (three lanes in eachdirection) has regular weekday users and currently operates atmaximum LOS C conditions. The lanes are 11 ft. wide, the right-sideshoulder is 4 ft wide, and there are two ramps within three milesupstream of the segment midpoint and one ramp within three milesdownstream of the segment midpoint. The highway is on rollingterrain with 10% large trucks and buses (no recreational vehicles),and the peak-hour factor is 0.90. Determine the hourly volume forthese conditions.
6.2 (REFERENCE) Consider the freeway in Problem 6.1. At onepoint along this freeway there is a 4% upgrade with a directionalhourly traffic volume of 5435 vehicles. If all other conditions areas described in Problem 6.1, how long can this grade be without thefreeway LOS dropping to F?