Road transport links were improved with the M5 motorway running close by, and the town now supports light industries and distribution depots, including Lidl's distribution centre for its southern based stores, and is also a dormitory town for Bristol. Vutrix, one of the largest semiconductor and video/audio distribution equipment companies in the television broadcasting industry, is based in the town. Two of the town's largest employers are the local council and Weston College, which has recently begun to offer university degrees as a secondary campus of Bath Spa University. Tourism Weston-super-Mare is a tourist destination, with its long sandy beach, Helicopter Museum, Weston Museum, Grand Pier and seasonal Wheel of Weston. A 2009 survey by Visit England placed the Grand Pier in the top ten free attractions in England. However, as of 2014, the pier charges for admission. On the Beach Lawns was a miniature railway operated by steam and diesel locomotives, which closed in 2012. The Paddle Steamer Waverley and MV Balmoral offer day trips from Knightstone Island to various destinations along the Bristol Channel and Severn estuary. Since the 1970s the number of visitors staying for several nights in the town has decreased, but the numbers of day visitors has increased. In 1995 there were 4 million visitors but by 2005 this had risen to 5.3 million. In 2007 69% of visitors to the resort were day visitors, compared to 58% in 2005. The 2005 survey showed that day visitors stay in Weston-super-Mare for an average of six hours whilst overnight visitors stay for an average of five nights. The largest percentage of visitors (22%) were from the West Midlands. Weston was found to attract two distinct groups: "grey tourists" over the age of 60 and families with young children. The Art Deco Tropicana, once a very popular lido on the beach, suffered years of neglect before closing to the public in 2000, and despite a number of attempts to reopen it, permission was given to demolish it in 2012. However, the complex reopened in 2015 and now serves as an events space, primarily hosting a seasonal amusement park and ice rink. In July 2011, North Somerset Council gave planning approval to the £50 million Leisure Dome, a indoor ski slope to be built on the site of RAF Locking. In 2015 the future of the project was in doubt because of the need for additional funding, and