Volume 31 Issue No. 1

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The articles for this issue of El Puente include: Message from the Director; Unsignalized Intersection Improvement Guide; Outstanding Participation of the University of Puerto Rico at Mayaguez at the 2017 TRB Annual Meeting; Meet Engineer Carlos Contreras, the New Secretary of the Department of Transportation and Public Works; ASCE Infrastructure Report Card: Mixed Panorama in Transportation; AASHTO Will Publish its Standard Specifications Only in Electronic Format Starting with the 2017 Edition; The ITE-UPRM Student Chapter Starts the Year with its Transportation Week; TP Sleeve: a new Option for the Maintenance of Traffic Cones; and Know your Director: Prof. Ismael Pagan-Trinidad.