In a study undertaken with Geoffrey Hayward, Winkel observed people in New York City subway stations to investigate the causes of congestion and suggested improvements to different elements in the public space.
[2] During this period, he also worked jointly with Philip Thiel and Francis Ventre on the development of the first interdisciplinary journal focused on person/environment relationships.
Winkel maintained that the jit was intended to provide a platform for the discussion of the relationships between physical environment and behavior.
[3] In 1968, Professor Winkel joined the Environmental Psychology Program at the Graduate Center of the City University of New York.
Subsequently, he began working with Professor Susan Saegert of the Environmental Psychology Program on housing and community related research.