Jalan Kusumanegara is a primary collector road north in Sleman, Yogyakarta. Because the road is congested and many vehicles are passing it often happens accident on this road, then the road is necessary to do research. Based on the background and above problems, the research objectives are: 1. identify the characteristics of the accident, 2. evaluate the potential problems in the way that has been operating on road safety, 3. analyze JPH and JPM, 4. provide recommendations for improvement. The benefits of this research are: 1. as to prepare the material acuhan pedoaman berorientas road safety on road safety, 2. reduce the possible risk of accidents on arterial roads, especially in the area of study, 3. raise awareness of related parties of the importance of planning the road on road safety. Note that the document from Sleman Police in 2015-2017 show the result of traffic accidents were 53 occurrences of accidents and the number of casualties as much as 63 people. Based on the average age of the victims were many accidents at the age of 16-25 years by gender male 36 and female 24 people, in the late afternoon hours of 15:00 to 18:59 is the most frequent accidents with 22 accidents and their causes among other things makes no human with 39 events. The bike is also the most widely terjdinya accidents with 35 vehicles and by type tabrakannya Sideswipe is a collision with the highest number of accidents accounted for 30 events. Kusumanegara path including primary collector road with the class III B and the plan of speed of 50 km / h. 2/2 road type, the road width of 7 meters no central median and the shoulder width of 1.5 meters. Stopping sight distance with the calculated unknown spot speed stopping sight distance (operations) are 28.17 m and 23.72 m, while the stopping sight distance is 62.87 m plan and visibility is ready with the calculated visibility is ready spot known speed ( operations) in the amount of 142.763 m and 125.41 m, while visibility is ready for a plan that is equal to 274.473 m.