When the LBJ Freeway opened in 1969, it was designed to hold about 180,000 vehicles per day. Current traffic counts put that number at 270,000 vehicles per day. Based on today’s traffic count, by 2020 demand will increase to 500,000 vehicles per day traveling this road.

To accommodate the increased traffic, from 2011 to late 2015, the 17-mile LBJ Express project will incorporate dramatic improvements to Interstate 635 and Interstate 35E in Dallas County. This innovative project will feature rebuilt main lanes, a continuous Frontage Road system, and 13 miles of TEXpress Lanes. Drivers will have the choice of driving on the same number of main general purposes lanes or opting for new TEXpress Lanes. Motorists who choose to use TEXpress Lanes can expect a reliable, predictable trip through this frequently congested corridor.
Source: http://lbjexpressblog.com/home/about-...

TIMELAPSE 
Part 1- www.youtube.com/watch?v=nDHzeE2f7PQ
Part 2- www.youtube.com/watch?v=IBXHAWF-oJs
Part 3- www.youtube.com/watch?v=5MGNcuB5Iz4
Part 4- www.youtube.com/watch?v=7K6wAh92LXA