Traveling along I-44 southwest from the City takes one into the fastest-growing part of the metro, which is known as "Tri-City" after its major constituents: Newcastle, Tuttle and Blanchard, Oklahoma. The area surrounds the tiny town of Bridge Creek. These suburbs have experienced rapid growth over the past 5–10 years as the result of people moving further from downtown Oklahoma City with an estimated combined population of 21,374 (2010 census). Though these communities have suffered growing pains, the increased residential and business development is improving the governments' abilities to improve the infrastructure needs and increase services. Newcastle serves as the epicenter of business development for the region but all of the communities are seeing growth in these arenas.