The use of roundabouts is well recognized for sustaining an efficient and safe intersection. However, the safety results may vary based on the prevailing conditions. Therefore, this study assesses the safety performance of roundabouts in Jordan. This study developed a predictive model by collecting and analyzing all accident records of 12 major urban roundabouts in the country over 3 years. For developing the model, this study employed an accident frequency analysis. The model calculated the rate of accidents and incorporated the geometric and operational characteristics of roundabouts. This was followed by ranking the safety performance of the roundabouts. It was concluded that driver behavior of violating the traffic rules, lack of clear lane markings in the circulating area and inadequate signage at the roundabouts entries are the main causes of roundabout accidents. The research recommends including the developed predictive model in future traffic control and planning studies, for identifying hazardous locations, or for prioritizing roundabout improvements based on safety performance. 1. INTRODUCTION Roundabouts are an alternative intersection control method that is used to improve road safety and convey traffic without widening roadways [1]. Initially, the concept of roundabouts first emerged in the United Kingdom for resolving the problems of traffic circles [2]. The modification of the driving rule, such as yielding of the entering traffic to circulate traffic, set the bases for the formation of the circulatory lanes, leading to the successful implementation of contemporary roundabouts. This has improved the roundabout safety and operations in contrast to the signalized intersection with rotaries. Given the current dynamic, road accidents are an increasing public health concern, which has cost the lives of more than 1.24 million people and resulted in almost 20-50 million non-fatal impairments. The World Health Organization [3] listed road accidents as the ninth leading cause of disability-adjusted life years (DALYs) lost, accounting for over 38 million DALYs lost or 2.6% of the global burden of disease. Low-income and middle-income countries account for 91.8% of the DALYs lost to road traffic injuries worldwide [4]. Compared to neighboring Middle Eastern countries, Jordan has one of the highest rates of traffic accidents [5]. The majority of the road accidents in Jordan were observed in the capital, Amman, where the population density is highest, the street network is saturated, and roundabouts are very common. The annual growth of registered vehicles in Jordan was 5.5% over the period 2012-2015 [6]. The total number of accidents has increased to 75% from 2004 to 2009 [7], roughly following the parallel increase of registered vehicles [7]. In 2015 alone, around 9,712 accidents took place in the region, which caused 608 deaths, 2,021 critical injuries as well as 12,000 minor injuries as stated by the Central Traffic Department [8]. Moreover, the increased number of road accidents, in 2010 alone, cost the c...