According to the MTO website (
http://www.raqsb.mto.gov.on.ca/techpubs/TrafficVolumes.nsf/tvweb?OpenForm&Seq=1), there are about 350,000 vehicles per day (depending exactly where you look) using the 401 - that is both directions. With an even distribution, this would be about 175,000 vehicles in the express. With no proof, I would assume the average trip is 10km - So this would work out to about $250k per day or $100M per year.
Thanks for that! However, with peak hour tolls being both more expensive and with the highway being full, it may bring it more than that.
Before I get any further, some distances: Port Union to the DVP = ~16km. DVP to Allen = ~10 km. Allen to 400 = ~5.5 km. 400 to 427 = ~7km. 427 to 403/410 = ~6.5km. Therefore, it's reasonable to assume that the average trip distance is at least 15km, as the central stretch from the DVP to the 400 is the busiest.
During peak hour, we can assume that the lanes are all taking the maximum 1,800 vph. The express lanes are 3 lanes through most of Toronto, so that's 10,800 vehicles per hour in the express. Assuming a peak period from 7-9 and from 4-6, that's a total of 43,200 vehicles getting tolled at the higher rate. Again, assuming a trip length of about 15 km, at 20¢/km, that's $129,600 per day just from the peak period tolls.
Based on your numbers, that leaves 131,800 vehicles for the other 20 hours in the day, tolled at 10¢/km. Again, average trip of 15km (maybe even longer since more people drive end-to-end off peak). That means $197,700 for the rest of the day.
Now since peak period charges only apply on work days, of which there are around 250 in a year, that gives us $32.4 million per year. That means $49.25 million for off peak workdays, and since there are 115 non-workdays per year, a total of $30.18 million for weekends and holidays.
That means a grand total of about $111.83 million per year in toll revenue from the Express Lanes on the 401. Round down to $110 million for simplicity sake and rounding errors.
The DVP and Gardiner see similar traffic levels over the course of a 24 hour period, and are usually at capacity during rush hour as well. The DVP between Eglinton and Lawrence is just over 175,000 daily as well. Given that the DVP is 15km long, the numbers should be pretty close to what the 401 is. Somewhere around $110 million.
The Gardiner is 18km long, but the last 3km aren't very heavily used, so we can assume an average trip of about 15km there too. The Gardiner between Strachan and Bathurst is 154,726 on the average weekday, but is significantly higher between the 427 and the Humber, because of the express/collector setup there. That would average out to about the same as the other two.
So it can be reasonably assumed that the tolling of the 401 Express, DVP, and Gardiner using the same tolling scheme would net somewhere between $300 and $330 million per year. In other words, enough to build 1km of subway per year just from that.