how a city can be impacted by mixed-use development. With the EPA putting models in the spreadsheet, it makes it much easier for municipalities, and developers to estimate the traffic, with Mixed-use spaces. The linking models also used as a resource tool measures the geography, demographics, and land use characteristics in a city. The Environmental Protection Agency has conducted an analysis on six major metropolitan areas using land usage, household surveys, and GIS databases. States such as California, Washington, New Mexico, and Virginia have adopted this standard as statewide policy when assessing how urban developments can impact traffic. Preconditions for the success of mixed-use developments are employment, population, and consumer spending. The three preconditions ensure that a development can attract quality tenants and financial success. Other factors determining the success of the Mixed-use development is the proximity of production time, and the costs from the surrounding market. Portland Mixed-use zoning has been implemented in Portland, Oregon, since the early 1990s, when the local government wanted to reduce the then-dominant car-oriented development style. Portland's light rail system MAX encourages the mixing of residential, commercial, and work spaces into one zone. With this one-zoning-type planning system, the use of land at increased densities provides a return in public investments throughout the city. Main street corridors provide flexible building heights and high density uses to enable "gathering places". Hudson Yards, NYC Hudson Yards is the largest private real estate development in the history of the United States. The project commenced in 2005 when the New York City Council approved the rezoning of the district from low-density manufacturing to high-density mixed use. The once deteriorated piers, located on the West Side of Midtown, are being refashioned into commercial office space, a mix of affordable and luxury housing, restaurants and retail space, a high-end Equinox hotel and fitness center, and multiple public parks. Set to be completed in 2024, the development is expected to accommodate 125,000 workers, visitors, and residents daily. Related Companies and Oxford Properties are the primary developers on this plan. This project is also the US's largest project to ever be financed by TIF (tax increment financing) subsidies. It did not require voter approval, nor did it have to go through the city’s traditional budgeting process. Rather, the project is financed by future property taxes and the EB-5 Visa Program. This program provides VISAs to overseas investors in exchange for placing a