Prof. Dr. Hermann Knoflacher served at the Institute for Transport Planning and Traffic Engineering at the Vienna University of Technology from 1975 to 2007 as a chairman. He studied civil engineering, mathematics, and geodesy in Vienna. He was the chairman of the Transport Institute at the Austrian Road Safety Board. Working as a Civil Engineer since the early 1970s, Knoflacher became a personal advisor to the Austrian Minister of Transport. For several years he was an expert in the European Commission’s Telematics and Sustainable Mobility Research Programs. His main research interests are the design of transport elements, transport system user behavior, traffic infrastructure, and mobility, sustainable development and mobility of cities, traffic safety; to create a solid scientific infrastructure for energy consumption and transportation and urban planning. Hermann Knoflacher is known internationally as a vibrant and critical advocate of active mobility.