IntroductionTransport today is the lifeline of any country. No matter how advanced a country is, it cannot sustain its growth rate without an efficient and comprehensive transportation network. This could be an air transport network, a maritime transport network or a rail transport network. All modes of transportation have their own advantages and cost factors. This article will focus on rail transportation in the northeastern region of the United States. In the United States primary rail transportation is the shipping of goods from one place to another. Passenger service, which once formed a large and vital part of the passenger transportation network, now has a limited role in transportation (Hilton, 1980). This pattern is surprising compared to other countries, where passenger transport via rail is a crucial aspect of their transport framework. One of the main reasons behind this trend could be the changing economic needs and rapid increase in other modes of transportation such as air transport, road transport, etc. Amtrak is the only interurban passenger railroad in the continental United States. Although a commuter rail system exists in several metropolitan areas, these systems are not interconnected efficiently, thus making it unusable for cross-country travel. Among these circumstances there is still a region that boasts superior and efficient passenger transport. This region is known as the Northeast Corridor of the United States, which is an exception to the overall rail transportation system of the United States. The Northeast Corridor essentially connects Washington, New York City, and Boston, with significant branches in Connecticut and Massachusetts. So the Northeast Corridor (NEC) is… in the center of the map… a list of regions where the maximum population lives near transit. This can be supported by the fact that more than 7 million people live in the 25 New York City region, yet more than 7 million live and 3 million people work within a half-mile radius of the rail transit station. Cities like Boston, Washington DC, and Philadelphia have 20-35% of their entire population living or working around rail transit systems. Mega cities in the northeastern region of the country account for the largest number of commuter rail passengers, and most of the population and jobs are located within a 2-mile radius of commuter rail stations (Loukaitou-Sideris, 2013) . The number of passengers using this commuter rail service can be understood from the fact that in 2009 these systems collectively transported more than 300 million passengers, which is almost 75% of the countries' total commuter train volume.