Did you catch the good news from the Texas Department of Transportation?
The "Impact" community newspaper (communityimpact.com) had an article in their February issue summarizing preliminary study results and proposals for road improvements to RR620.
This is great news. Although the actual improvements are yet undecided and the implementation may be years away, it is at least very encouraging that they are considering something.
TxDOT conducted a survey of RR620 and they got 3,000 survey responses, of which 71% or respondents live along the 620 corridor.
Among the proposed improvements are a) Elevated (possibly tolled) 4-lane roadway and widening the road to six lanes between RR2222 and US183, b) adding a median from Quinlan Park to Lakeway, c) Adding a median and widening the road between Quinlan Park and RR222 to 6 lanes.
A draft report of the complete study results is scheduled by TxDOT for April, 2016.