Big I (I-40/I-25) reconstruction & ITS infrastructure.

Details

• Creators:
  Magno, Carlos ; Doyle, Terrence
• Corporate Creators:
  United States. Federal Highway Administration ; Mid-Region Council of Governments (N.M.)
• Subject/TRT Terms:
  • ITS program technologies
  • Highway traffic
  • Traffic measurement
  • Traffic incidents
  • Traffic data
  • Traffic flow
• Publication/ Report Number:
  FHWA-JPO-09-064
• Resource Type:
  Tech Report
• Geographical Coverage:
  New Mexico
• Corporate Publisher:
  United States. Federal Highway Administration
• Abstract:
  The New Mexico Department of Transportation (NMDOT) rebuilt the Big I interchange ; in Albuquerque to make it safer and more efficient and to provide better access. The Big ; I is where the Coronado Interstate (I-40) and the Pan American Freeway (I-25) intersect ; in Albuquerque, New Mexico. The original Big I was designed to support an average ; daily traffic (ADT) of 40,000 vehicles and was severely over capacity, experiencing an ; average of 1.7 crashes per day that were estimated to cost about $12 million annually ; (data from 1999). ADT in the interchange was approximately 300,000 vehicles prior to ; its redesign; the redesigned Big I has a design capacity of 400,000 ADT. The two-year ; project began on June 30, 2000 and involved 111 lane-miles of construction and 45 new ; and 10 rehabilitated bridges. ; For the Big I project, NMDOT ; employed ITS in the form of a mobile ; traffic monitoring and management ; system to help move the large number ; of vehicles through the extensive ; construction area. Mobile traffic ; monitoring and management systems ; use electronics and communications ; equipment to monitor traffic flow and ; provide delay and routing information to ; drivers and agency personnel. The ITS application deployed at the Big I in 2000 was ; used for the duration of the work zone (two years). The ITS components were deployed ; just prior to construction, with plans to incorporate portions of the system as part of a ; permanent ITS application for freeway management once construction was completed. ; NMDOT used ITS for this major construction project for several reasons, including: ; changes in traffic patterns, nighttime closures, and pre-determined alternate routes ; required that travelers be provided with high quality real-time information on travel route ; availability. The high volume of traffic moving through the Big I created great potential ; for congestion. NMDOT estimated that normal traffic volume had to be reduced by at ; least 20 percent to keep traffic moving through the Big I area. Incidents would create ; further congestion and require rapid response to avoid additional delays. A system was ; needed to provide accurate information, support quick identification of incidents, and ; help manage traffic through the area. ; The main goals of the ITS portion of the Big-I reconstruction were: ; · To provide traffic management capabilities and traffic information on traffic ; routing, detours, and significant incidents; ; · To minimize capacity restrictions due to incidents by more quickly identifying ; incidents and determining an appropriate and effective response to clear the ; roadway; and ; 4 ; · To enhance traffic safety. ; The total cost of the Big I ITS infrastructure project was $1.5 million. NMDOT assumed ; ownership of all the ITS components at the end of the construction project.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/3307/dot_3307_DS1.pdf
• File Type:
  [PDF - 115.61 KB]
• Collection(s):
  Federal Highway Administration ; ITSJPO Digital Library
• Main Document Checksum:
  urn:sha-512:763e03f3c52f70c1ba962943cb4307b364d29ad8cc058fc23c6d45c852b686755f6927edbbcfb575d4ad1e6d81cd4b79d1df5ed6677c23a6d3896141db443004