Sleman is an area of tourism, education and shopping centers. It makes Sleman had a pretty high growth rate of vehicle. Along with the increases of the vehicle, it can cause vehicle delay at a crossroads. Crossroads Agro is an intersection that has a high volume of traffic so that intersection has a long delay. The purpose of this study is to determine the performance of the intersection after simulate the signalized and provide an alternative model to the intersection. Data were collected by field survey and will be analyzed using Vissim 9 software. The result of research of the intersection performance on the existing condition showed a long queue is 31.95 m, an average delay of 24.47 sec/vehicle and the level of service (LOS) D. In the existing condition of the intersection has a high conflict area. Recommendations for the intersection is the Alternative 3 with three phases planning signaling direct current from west to east and flows from the East can only be to the South. The results of the analysis to improve the situation with a high conflict area queue length 19.6 m, an average delay of 39.95 sec / vehicle and the level of service (LOS) D.