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Pages 87-105

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From page 87...
... 87 C h a p t e r 8 This chapter describes how to incorporate truck freight bottleneck analysis into typical planning study documents. This is followed by several examples of truck freight bottleneck analysis and how they were -- or could be -- incorporated into planning studies.
From page 88...
... 88 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Task in Planning Study Incorporation of Bottleneck Analysis Existing Conditions Essential data collected for bottleneck analysis (speed and volume) can be used as part of the description of existing conditions.
From page 89...
... Incorporating truck Bottleneck analysis into the planning process 89 Source: NCDOT I-95 Economic Impact Analysis. Figure 8-1.
From page 90...
... 90 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Figure 8-2. I-95 truck bottlenecks in North Carolina by mile segment.
From page 91...
... Incorporating truck Bottleneck analysis into the planning process 91 Top 20 Locations Mile Segment Number of Days with Some Congestion (0 to 30) Number of Hours with Some Congestion (0 to 720)
From page 92...
... 92 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Hour Number of Mile-Days of Congestion Begin Hour End Hour 0 1 3 1 2 6 2 3 7 3 4 11 4 5 9 5 6 28 6 7 49 7 8 61 8 9 84 9 10 98 10 11 121 11 12 112 12 13 124 13 14 120 14 15 111 15 16 90 16 17 99 17 18 51 18 19 35 19 20 22 20 21 12 21 22 10 22 23 2 23 24 3 Table 8-3. Congestion by hour of day on I-95 in North Carolina based on truck GPS data.
From page 93...
... Incorporating truck Bottleneck analysis into the planning process 93 Day of Week Number of Mile-Hours of Congestion Monday 160 Tuesday 273 Wednesday 239 Thursday 258 Friday 210 Saturday 89 Sunday 39 Source: NCDOT I-95 Economic Impact Analysis, 2013. Table 8-4.
From page 94...
... 94 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Source: ATRI Truck GPS Data, 2015. Figure 8-3.
From page 95...
... Incorporating truck Bottleneck analysis into the planning process 95 Source: Downtown Truck Traffic Mitigation Study, Valdosta-Lowndes County MPO, 2015. Figure 8-4.
From page 96...
... 96 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Source: Downtown Truck Traffic Mitigation Study, Valdosta-Lowndes County MPO, 2015. Figure 8-5.
From page 97...
... Incorporating truck Bottleneck analysis into the planning process 97 8.6 Truck Bottleneck Analysis in Arkansas Truck GPS data from March of 2015 were used to determine truck speed performance throughout Arkansas. The GPS data were used to determine average truck speeds during different periods throughout the day on both Interstates and non-Interstates.
From page 98...
... 98 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Reliability was calculated by using the average truck speed and standard deviation of truck speeds for each highway link. From these values, the percent deviation is calculated by dividing the standard deviation of truck speeds by the average truck speed and multiplying the resulting value by 100 percent using the following formula: ( )
From page 99...
... Incorporating truck Bottleneck analysis into the planning process 99 Figure 8-8. PM peak-hour truck speed reliability on Arkansas Interstates.
From page 100...
... 100 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Figure 8-9. Heat map of truck stops for medium-duty trucks in California.
From page 101...
... Incorporating truck Bottleneck analysis into the planning process 101 in Figure 8-12. The truck speed analysis was also used to identify the key congested corridor segments in the Atlanta metropolitan region.
From page 102...
... 102 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Source: GDOT Freight & Logistics Plan, 2012. Figure 8-12.
From page 103...
... Incorporating truck Bottleneck analysis into the planning process 103 Figure 8-13. Map of congested corridors in Atlanta metropolitan region based on truck GPS data.
From page 104...
... 104 Guide for Identifying, Classifying, evaluating, and Mitigating truck Freight Bottlenecks Table 8-5. Summary truck speed statistics on congested corridors in Atlanta metropolitan region based on truck GPS data.
From page 105...
... Incorporating truck Bottleneck analysis into the planning process 105 Figure 8-14. I-20 average speed, segment and time-of-day reliability based on truck GPS data.

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