Traffic problems are things that often occur in the scope of transportation, especially congestion and environmental pollution in the Sleman Regency due to increasing mobility of people who are not balanced with the development of traffic facilities and infrastructure. Therefore, in solving this problem, it is necessary to implement traffic management as an alternative solution to unsignalized intersections. The method in collecting data used with traffic counting is the calculation of the number of vehicles entering or exiting intersections for each approach. Results of the analysis from PKJI 2014 obtained the degree of saturation, delay, and queuing opportunity by fulfilling the requirements (DJ ≤ 0,85) while the analysis results from VISSIM 9.0 were obtained after modeling the simulation of vehicle traffic flow and displayed the value of delay, queue length, level of service, even vehicle exhaust emissions by meeting the requirements (LOS < LOS E).Analysis of the two references has different results because the characteristics of the calculation system are not the same so it is interesting to compare and explain. Existing conditions have the worst traffic performance, namely the degree of saturation of 1,15 with the level of service E, then an alternative is made to improve the performance of intersections namely the first alternative (approach C to one direction), second alternative (approach D to one direction), and third alternative (merger of approach D into one direction and reduction of sidewalk dimensions). All conditions will display the value of the amount of vehicle exhaust emissions in the form of CO and NOx compounds and the amount of fuel released.