Скачать с ютуб Traffic Volume Equations & Vehicle Types [AADT, K-factor, D-factor, PHF, Design Service Flow Rate] в хорошем качестве

Traffic Volume Equations & Vehicle Types [AADT, K-factor, D-factor, PHF, Design Service Flow Rate]

AADT = Annual Average Daily Traffic (over 12 month period) ADT = Average Daily Traffic (other time period) DHV = Design Hour Volume (both directions) DDHV = Directional Design Hour Volume (one direction) DSFR = Design Service Flow Rate (peak 15-minutes in one direction) K – Percent of traffic during the peak hour (typically 8% to 12%) D – Proportion of traffic traveling in the predominant direction (typically 0.5 to 0.7) PHF – Ratio of design hour volume to the peak 15-minute flow rate (typically 0.8 to 0.95) The traffic growth rate equation (9:50) in this video is consistent with the "Single Payment Compound Amount" or "to F given P" in the engineering economics part of the reference handbook (Section 1.7, page 37). Not the traffic growth rate equations in section 5.5.9 of the reference handbook v1.1 (page 289), which are specific to pavement analysis calculations. #TrafficEngineering #DanielFindley 0:00 Introduction 1:02 Design Vehicle Dimensions (Example: WB-40) 1:42 Traffic Volume Terminology 4:19 Basic Traffic Volume Equations 8:00 Peak Hour Factor Calculation 9:49 ADT Growth Rate 10:05 Example 3 - ADT Calculation 11:00 DHV Calculation 12:50 DSFR Calculation