That's interesting. The news reports has more charts which are also interesting.
SH 45N (13 miles) is lower than I expected, and SH 45 SE is surprisingly low. 183S looks like it is doing well considering it is relatively new, and 183N appears to have the heaviest traffic since it is only 9 miles long and brings in $71.8 million.
For me, it also highlights the cash cow status of the original three sections of the Sam Houston Tollway in Houston.
This is the most recently reported annual revenue
US 59 (Southwest Freeway) to I-10 Katy Freeway, 8 miles: $120.6 million
I-10 Katy Freeway to US 290 Northwest Freeway, 6 miles: $101.7 million
US 290 Northwest Freeway to I-45 North Freeway, 11 miles: $129.1 million
Those three sections have paid for themselves many times over since they opened in 1988-1990. But these three sections are a cash register for HCTRA, so HCTRA keeps the tolls high, and I feel the pain since I drive them regularly. HCTRA's overall toll revenue was $809 million. The only (somewhat) good news is that a systemwide 10% toll rate decrease is scheduled for later this year. Combined with inflation, tolls are reduced by a meaningful amount. But tolls on these three sections should be at least cut in half, if not removed entirely.