EDITOR:"Work zone ahead" signs can bring dread and frustration. Work zones are areas of delay. They are also pockets of economic development.Road projects not only help improve our commutes, quality of life and infrastructure, but enhance our economy and put Nevadans back to work. In fact, studies show an economic gain of approximately $1.50 for every $1 invested in Nevada transportation. Transportation projects result in immediate and long-term benefits.This summer, NDOT and our local government partners will have many vital road improvements underway, including Interstate 80 improvements between Robb Drive and Vista Boulevard, completion of the I-580 connection through Pleasant …