Corridor Features

Proposed Improvements

The I-35 Capital Express Program proposes roadway elements, designs and features that will improve mobility and safety along the corridor. Explore the various proposed improvements below.

Diverging diamond interchanges

Diverging diamond interchanges (DDIs) use an innovative design to address congestion by allowing vehicles to travel more quickly through an intersection and increase safety by reducing the number of potential conflict points. The North project proposes a DDI on I-35 at Wells Branch Parkway. Learn more about DDIs.

High-occupancy vehicle lanes

High-occupancy vehicle (HOV) lanes, sometimes called carpool lanes, are a type of managed lane. HOV lanes are reserved for the use of carpools, vanpools, emergency services and transit vehicles. These lanes are typically located next to the general-purpose lanes and enable those who carpool or ride the bus to bypass traffic in the adjacent lanes. Lanes are identified as “2-plus” which refers to the minimum number of vehicle occupants to qualify.

Intersection bypass lanes

An intersection bypass lane is a dedicated lane for traffic exiting the mainlanes or traveling on the frontage road to bypass a signalized intersection. Intersection bypass lanes allow traffic to bypass frontage road traffic signals at cross streets and are separated from the mainlanes. Learn more about intersection bypass lanes.

Shared-use paths

Shared-use paths provide a paved, off-road travel area for non-motorized users, such as bicyclists, pedestrians, skaters, joggers and others.

Smart work zones

Intelligent transportation systems (ITS) can be used in highway work zones to help improve public safety and mobility. The resulting systems are commonly referred to as “smart work zones” because they leverage the information derived from the ITS equipment to improve operations within and around the work zones.

TxDOT’s use of ITS in work zones is intended to improve safety for motorists as well as the work zone personnel. Other benefits include reducing traffic delay, providing effective construction-related information to the public, and providing performance metrics for future work zone design improvements. Learn more about smart work zones.

We Want Your Feedback

Ongoing stakeholder involvement is necessary to identify and refine proposals for the corridor. Questions and comments are welcome at any time.

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