Current Data available through the BC Ministry of Transportation website is not complete for Highway 4.
See greenhouse gas emission comparisons, traffic estimates, and this survey, all in one comprehensive spreadsheet at What are the Numbers.
To attempt to provide some data to work with, below are the results of 21 hours of surveying Highway 4 truck traffic. Results are in trucks per hour.
Finally, Consider also, this snapshot taken from the BC Highway 4 webcam
Note that these should only be used as information on what might be a typical period in traffic… they should not be considered representative of all times of day, week or year.
Counts were done between February 7 and February 11, 2011 and are continuing in May.
Semi-trucks, logging trucks, and B-Train trucks were counted.
Counted for exactly one hour, in both directions.
Overall Totals include collapsed logging trucks and empty uncovered trailer trucks.
Monday, Tuesday and Thursday surveys done from logging road access on Highway 4 between East and Westbound passing stretches near Little Qualicum Falls Park. Wednesday survey was done at Alberni Summit.