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Problem 1. A six-lane (three lanes per direction) undivided highway has 12.5-ft lanes and 4-ft right shoulders. At one point along the northbound side of this road, there is a

4.5% upgrade that is 0.8 mi long. There are 12 access points along this grade. The peak-hour traffic volume for the northbound direction has 3680 passenger cars and 320 trucks and buses (no recreational vehicles). This traffic stream is primarily commuters. PHF = 0.95. The speed limit for this roadway section is 60 mph. Determine the level of service for this roadway section.

Fig: 1