Spring Creek Village RV and trailer park in Plano (N of Dallas) is on US-75 and pretty close to a DART station (the one between Park and Parker Rd). The DART rail line runs right into downtown Dallas and from there it spokes out on other rail lines and buses. DART doesn't do cross town very well as it was designed from day one to get people into and out of Dallas city center. Once you get into Dallas city center you can pick up a rail or bus going out to any of the other suburban communities. Ft Worth has a similar system but I don't recall off hand if there's a rail or bus connection between the two city centers.