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Mariposa Port of Entry Bottleneck Study: Facilitating Efficient, Secure and Economical Cross-Border Transportation Movements
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  • Abstract:
    The Arizona-Sonora border has become increasingly important to both states’ economy due to increased trade between the regions following the 1994 passage of the North American Free Trade Agreement (NAFTA) and the establishment of maquiladora industries south of the border. Since the events of September 11, 2001 increased demands for border security have presented further challenges to the efficient flow of cross-border trade. Most of the exports and imports crossing the border are shipped by land transportation via truck or rail. These goods and the industries they support are crucial to the economic development of the border region. The purpose of this study was to identify bottleneck areas to and from the Mariposa Port of Entry (POE) at Nogales that impact the efficient cross-border movement of goods and recommend low-cost, high-impact solutions. Nogales is the primary port accounting for more than three-quarters (77 percent) of all commercial traffic entering Arizona from Mexico and is one of the country’s largest ports of entry for fruits and vegetables. For this project, a bottleneck is defined as “a condition that restricts the free movement of traffic, creating a point of congestion where demand exceeds capacity for a given length of time.” This study employs traffic data collection and analysis to identify the location and nature of bottlenecks that restrict the free flow of people and goods into, and away from, the Mariposa POE. The focus areas include the roads immediately to the north and south of the Mariposa POE, respectively SR 189 (Mariposa Rd.) and the Corredor Fiscal (Fiscal Corridor), as shown below. The study also proposes improvements to alleviate congestion at the identified bottlenecks and provides estimates of associated costs.
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