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Legacy ID

201

TABLE 2 - Gap Size of Platooning Vehicles in Work Zones

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Pattern Frequency (vph) Mean gap (seconds) Mean headway (seconds) A. Short-Term Work Zone Car-car 1,087 1.610 1.986 Car-truck 209 2.030 2.429...

FIGURE 1B - Percentage of Traffic in Platoons vs. Flow Rate: Three-Second Headway

FIGURE 2A - Platoon Size Distribution: Short-Term Work Zone

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Number of vehicles in a platoon Truck-leading platoon Nontruck-leading platoon All platoons 2 45.08% 55.35% 51.77% 3 24.13% 24.11% 24.12% 4...

FIGURE 5 - Probability of a Rear-End Collision

FIGURE 4 - Gap Distribution

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A. Short-Term Work Zone Gap (seconds) Relative Frequency 0.50 1.42% 0.75 4.11% 1.00 9.14% 1.25 11.17% 1.50 13.30% 1.75 14.34% 2.00 13.30% 2....

FIGURE 4 - Gap Distribution

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TABLE 1 - Comparison of Sampling Strategies

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Sampling and estimation alternative Unstratified ratio estimation statistics Overall performance cv of pass-miles cv of auxiliary variable Correlation coeff between pass-miles and auxiliary variable...

Sampling and Estimation Techniques for Estimating Bus System Passenger-Miles

PETER G. FURTH*

ABSTRACT

Most U.S. bus systems conduct on-off counts on a sample of vehicle-trips to estimate annual passenger-miles, which must be...

TABLE 2 - Stratified Ratio Sampling Statistics

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Stratum 1 2 3 4 All Stratum weight 37% 31% 31% 2% 100% Mean passenger-miles per trip 41 123 237 197 129 cv of passenger-miles 0.68 0.63 0.62...

Guidelines for Manuscript Submission

Please note: Submission of a paper indicates the author's intention to publish in the Journal of Transportation and Statistics (JTS). Submission of a manuscript to other journals is unacceptable. Previously published manuscripts, whether in an exact or...

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