Drivers heading from Round Rock into Austin have a new place to check what construction may mean for their trip, just as another downtown work zone begins affecting traffic.

The Construction Partnership Program launched CTXGO on October 1, and Austin’s October 5 mobility update introduced the regional travel resource to the public.

The free app and companion website combine roadway information with travel-planning options, giving commuters a way to review potential obstacles before leaving home.

One trip, several moving parts

A journey into Austin may involve a highway, a downtown street and a final walk to an office or appointment, so checking only the destination address can miss a problem along the way.

CTXGO’s website describes tools for reviewing traffic, work zones, electric-vehicle charging locations and toll-free routes.

The city also describes a connection to the Highway Emergency Response Operator program for drivers needing roadside assistance on highways.

Those features make the launch useful beyond one construction project, though the app is a planning tool rather than a promise that a particular trip will take less time.

Fifth and Lavaca work starts this week

The city’s mobility update says utility tie-in work associated with a high-rise project begins the week of October 12.

During the first phase, Fifth Street is scheduled to have one lane available from 9 a.m. to 4 p.m. daily for about six weeks.

Once that phase ends, work moves to Lavaca Street, where the announced plan allows two lanes for approximately four weeks, with work continuing around the clock.

Fifth Street is to have two lanes available during the Lavaca phase.

These are planned construction stages, not a guarantee that every lane arrangement will remain unchanged throughout the project.

Plan before pulling away

For a Round Rock resident, a useful starting point is to review the entire journey, including the return trip and any downtown turn needed to reach a garage or pickup location.

Allowing a little flexibility is especially helpful when an appointment has a fixed arrival time.

Check the date on a saved advisory, compare it with the current route information and follow signs placed at the work zone.

Use a safe parked location to review changes rather than adjusting a route while driving.

Someone meeting friends downtown can also share the access plan in advance so the group does not rely on different assumptions about parking or pickup.

The practical change is access to a regional planning resource, alongside a specific downtown lane-reduction advisory that begins this week.

Current construction information matters more than an old screenshot when a work zone changes.

Reporting checked October 12, 2026; estimated construction durations can change.

Sources and useful links

City launch announcement

October 5 mobility update

CTXGO live map

Regional leaders at the October 1, 2026 CTXGO launch at Austin City Hall. Photo: City of Austin Transportation and Public Works.