Nippon Koei Latin America - Caribbean participated in the XXIV World Road Congress, celebrated in Mexico DF, Mexico, between 26 and 30 September 2011.  The company maintained a stand within Japan's booth to receive clients, network with potential project partners, and welcome the participants at the Congress.  Presentations were given to invited and interested guests about a unique Japanese tunnel ventilation system, with case studies from Tunel de la Linea in Colombia and Hai Van Tunnel in Vietnam, presented by Masanobu Shimosaka.  The stand featured  illustrative panels about ITS technology, road tunnel technology and road slope protection technology based on the company’s experience.