The dynamic of course scheduling is a direct factor to the high density of transport in the university environment. The high intensity of the drive at the University as a result of the scheduling pattern of lectures, of course, followed by the high emissions produced by vehicles are used. The absence of the scheduling pattern lecture addressing impacts on the environment will certainly will confuse this environment with emissions continue discarded by humans. By incorporating the concept of constraint programming with a barrier that consider the impact on the environment in the course scheduling is expected to reduce vehicle emissions college participants. Department of Civil Engineering, as the oldest and largest department in the Faculty of Engineering, University of Diponegoro with an average number of 280 students each object in the application of his generation into the design of our proposed algorithm because it has the most number of vehicles compared to other departments in the Faculty of Engineering. The results of the application of this algorithm, is able to reduce the amount of emissions by 50% for the class of 2011 and 2010 and even 66.6% for the class of 2009 students
