Hey there, I'm the author of Passport to Dreams. I followed your link here from my blog traffic stats.
Preview Blvd, as Hotel Plaza Blvd was once known, opened October 1, 1970, and dead ended directly at the Preview Center. When the WDW Preview Center closed on September 30, 1971, there was little reason to use Preview Blvd for several months. Although Disney intended to get the four "Motor Inn" hotels open in October 1971, they ended up coming online one after another during the summer and Autumn of 1972, where they joined the original Vacation Villas and the Lake Buena Vista Preview Center as the start of Lake Buena Vista. At this time, an internal access road was built, Buena Vista Drive, which heads north, connecting with SR 535 and the "east service area". From the east service area, cars may drive west along unmarked roads to find Fort Wilderness and eventually the Magic Kingdom. These roads were never meant for direct access to the vacation kingdom, and few guests ever drive them although they are technically open to the public. Until Old Key West went up, the official way to get in or out of Lake Buena Vista was by getting on I-4 and driving back into the main World Drive entrance.
The original four Motor Inn hotels were:
- TraveLodge (now Best Western)
- Royal Inn (now Royal Plaza Hotel)
- Howard Johnson's (now Holiday Inn)
- Dutch Inn (now Windham)
The buildings along Preview Blvd have grown more than they've shrunk. In the mid-80s, the Buena Vista Palace and Hilton were added, and what is now Doubletree Suites was added in, I think, 1989, as a "Pickwick Hotel" or something similar.
You can see some photos of the original 1972 hotels and the way the road looked here:
http://passport2dreams.blogspot.com/2010/07/host-community.html
535 existed long before Disney came, although it has always led to what's now Reams Rd and eventually the "north service area" behind Magic Kingdom. In 1971, the Lake Buena Vista/535 exit off I-4 was the official "employee entrance", and what was essentially an unlit, winding two lane country road was now carrying thousands of employees a day, often traveling well in excess of the speed limit. Disney told the state of FL they had to redevelop the road to meet their needs, Florida responded that since Disney created the need they needed to contribute to the renovations. Disney responded by launching a massive local negative publicity campaign, putting up billboards next to the cast parking lot in the service area proclaiming "Congratulations! You Arrived Alive on SR-535!". Disney published photos of crashed cars in employee newsletters and encouraged cast members to write to their congressmen. They even cut a folk single called "Can You Arrive Alive on 535?" and put it on rotation in local Orlando stations.
Disney won that one.