problems caused by landing small- and mid-size aircraft on the longer runways used by larger planes such as the Boeing 777, which need longer runways than the smaller planes. With the fifth runway, Hartsfield–Jackson is one of only a few airports that can perform triple simultaneous landings. The fifth runway is expected to increase the capacity for landings and take-offs by 40%, from an average of 184 flights per hour to 237 flights per hour. Along with the fifth runway, a new control tower was built to see the entire runway length. The new control tower is the tallest in the United States, over tall. The old control tower, at 231ft, was demolished in August 2006. On October 20, 2003, the Atlanta City Council voted to rename Hartsfield–Jackson Atlanta International Airport to honor former mayor Maynard Jackson, who died June 23, 2003. The council planned to drop Hartsfield's name from the airport, but public outcry prevented this. In April 2007, an "end-around taxiway" opened, Taxiway Victor. It is expected to save an estimated $26 million to $30 million in fuel each year by allowing airplanes landing on the northernmost runway to taxi to the gate area without preventing other aircraft from taking off. The taxiway drops about from runway elevation to allow takeoffs to continue. After the Southeastern U.S. drought of 2007, the airport (the state's eighth-largest water user) changed to reduce water usage. This included adjusting toilets (725 commodes and 338 urinals) and 601 sinks. (The two terminals alone use a day.) It also stopped using firetrucks to spray water over aircraft when the pilot made the last landing before retirement (a water salute). The city of Macon offered to sell water to the airport through a proposed pipeline. The airport today employs about 55,300 airline, ground transportation, concessionaire, security, the federal government, the City of Atlanta, and airport tenant employees and is the largest employment center in Georgia. With a payroll of $2.4 billion, the airport has a direct and indirect economic impact of $3.2 billion on the local and regional economy and an annual regional economic impact of more than $19.8 billion. In December 2015, the airport became the first airport in the world to serve 100 million passengers in a year. Historical airline service Delta and Eastern dominated the airport during the 1970s. United, Southern, Piedmont, Northwest and TWA were also present. In 1978, after airline