A goal of the KPESIC is to support knowledge transfer, capacity building, innovation, and lesson learning in environmentally sustainable infrastructure construction and to become a forum for contributing ideas and solutions. Knowledge exchange involves sharing of information and experiences among specialists, and can be a powerful way to help improve the methods, approaches and results in environmental sustainability in infrastructure projects. Specialists want to learn from the practical experience of others who have faced or are facing similar problems. While published literature is a great source, often the most up-to-date information or ideas on specific new challenges has yet to be formally published; a real-time knowledge exchange is thus extremely useful. Specialists can benefit from being connected and having more immediate access to knowledge and solutions to their specific needs. This Knowledge Exchange component includes various virtual spaces for specialists to interact, including “Topics for Discussions”, “Ask your Questions”, “Work Groups”, “Webinars” and “Interviews”.