Photo courtesy NTA The first of seven lines will be 23 kilometers long and have 22 stations. Photo courtesy NTASet for completion in 2017, project construction is estimated to cost $2.5 billion. With about 400,000 residents and more than 3.3 million in its metropolitan area, Israel's second-largest city, Tel Aviv, is finally getting a mass transit system. After decades of false starts, work has begun on the first of seven planned lines of a combined light-rail and bus rapid-transit network. Estimated at $2.5 billion, it is the most expensive civilian transport project ever undertaken in Israel. The launch comes a