How does the 110 fwy fast track work?

What is the shortest highway route from Miami to Austin TX?

Take FLORIDA'S TURNPIKE (toll) NORTH to I-75 NORTH north of Orlando.Take I-75 NORTH to I-10 to JACKSONVILLE and TALLAHASSEE at EXIT 435. You want to take I-10 WEST to TALLAHASSEE.Take I-10 WEST to TEXAS STATE HIGHWAY (SH) 71 WEST to LA GRANGE and AUSTIN at EXIT 695 in TEXAS. To bypass New Orleans, take I-12 WEST (EXIT 259B off I-10 in LOUISIANA). To bypass Houston, take I-610 (Loop Fwy) NORTH. [EXIT 775A off I-10 in TEXAS, then EXIT 11A off I-610 (Loop Fwy) to get back onto I-10 WEST.]Take SH-71 WEST to Austin.