Editing Interstate 45 (section)

===North Freeway===
The I-45 North Freeway HOV begins in downtown Houston near the [[University of Houston–Downtown]], with easy access inbound on Milam Street and outbound on Travis Street. Ramps and entrances are provided for access from the following roads. All are fully accessible.
* [[Interstate 10 in Texas|I-10]]/[[U.S. Route 90 in Texas|US&nbsp;90]] westbound exit and entrance only
* Quitman Street
* Airline Drive (to Crosstimbers Road)
* North Shepherd (to North Shepherd Park & Ride)
* [[Farm to Market Road 525|FM&nbsp;525]] (Aldine-Bender Road)
* Kuykendahl Park & Ride
* [[Farm to Market Road 1960|FM&nbsp;1960]] (to Spring Park & Ride) 
The HOV ends approximately {{convert|1|mi|km|spell=in}} north of the FM&nbsp;1960 (Cypress Creek Parkway) exit and becomes a diamond white line at grade separated HOV north to just before exit&nbsp;84 [[Texas State Highway Loop 336|Loop&nbsp;336]] on the south side of [[Conroe, Texas|Conroe]]. This provides constant HOV access with one lane on the northbound side and one lane on the southbound side with periodic dotted lines for access at major exits.