Tabellab
Data & Analytics Intermediate

Traffic Count Analysis: Hourly Volumes, Peak-Hour Factors, Directional Splits, Vehicle Classes, Annual Averages & Growth Projections

Turn raw road counts into planning numbers. You will build hourly profiles from 15-minute counts, find the peak hour and its peak-hour factor, split traffic by direction and vehicle class, expand short counts to annual averages with fictional factors, read junction turning counts and project growth, with every cell checked as you go.

8 lessons 8 labs 2.1 h Certificate

One-time payment ยท lifetime access ยท lessons, labs, exam and certificate included ยท no subscription.

About this course

This course turns raw road counts into planning numbers in a spreadsheet. For a fictional district transport office you add 15-minute counts into rolling and clock hours, find the peak hour and its peak-hour factor, and split a classified count by direction and heavy vehicles. You compare weekdays with weekends, expand one-day and seven-day counts to annual average daily traffic with fictional month and day factors, and read a junction turning matrix with arm totals and turning shares. You project growth to horizon years, find the year a fictional threshold is passed and finish with a quality check of a raw 24-hour count and a daily profile chart.

Lessons

  1. From 15-Minute Counts to Hourly Volumes: Rolling Hours, Clock Hours and the Peak HourLab15 min Pro
  2. Peak-Hour Factor: How Peaky Is the Peak Hour?Lab15 min Pro
  3. Directional Splits and Heavy Vehicles: Shares by Direction, Class and the Peak HourLab16 min Pro
  4. Weekday vs Weekend: Day Types, Average Days and the Weekly PatternLab15 min Pro
  5. Short Counts to Annual Averages: Month and Day Factors and the AADT EstimateLab16 min Pro
  6. Junction Turning Counts: the Movement Matrix, Arm Totals and Turning SharesLab15 min Pro
  7. Growth Projections and the Design Hour: Compound Growth, Peak Direction and the Threshold YearLab16 min Pro
  8. Capstone: Count Quality Checks, Spike Flags, the PM Peak and the Daily ProfileLab18 min Pro