In modern times, society is entrusted with the responsibility of operating one of the most accessible and potentially dangerous pieces of machinery. With the rate of injuries and deaths caused by vehicles continuing to increase, it has become the job of engineers to evaluate and improve the measures taken to prevent further damage. One of the most important aspects of road safety are intersections, where the possibility of collisions is very high. 20% of all crashes occur within 100 meters of intersections (KW Ogden, 2001). The intersection that will be discussed in this report is the intersection of Broadwater Rd and Newnham Rd at Wishart. This intersection is subject to steep gradients and in some cases sight distance has been greatly impeded, making it a very dangerous intersection. So, to improve this intersection, speed limits were proposed along with adequate orange light duration to prevent potential accidents. Three main concepts can be associated with crossbreeding analysis; firstly, the inclination to which the intersection is subjected. According to Dr Dan, the maximum allowable grade in Australia is 8%. The gradient of Newnham Rd can be estimated to be 5% as the road is steep at this intersection. Graphs 1 and 2 clearly show that the slope of a road has a significant impact on the stopping distance of vehicles at an intersection. As the slope of a road increases, its inclination angle increases resulting in a greater value of mgSinθ. MgSinθ is the gravitational force component parallel to the slope that works with the applied braking force to reduce the speed of the vehicle. From graph 1 it can therefore be deduced that, when going uphill, the stopping distance of a vehicle is inversely proportional to the steep... middle of paper... ping distance of the vehicles. The stopping distance includes recognition, reaction and braking, which are represented in Dr. Dan's formula (Logbook). These components depend on various factors. For example, the driver relies on visual distance to be able to understand the intersection and recognize the reason for stopping. Therefore, viewing distance was considered in this analysis. Furthermore, reaction time depends on the driver's attention, distraction, fatigue, alcohol consumption and driver experience (D. Madden, 2007). For this reason, reaction times of 1 second and 1.5 seconds were considered. These times were also suggested by Dr. Dan. In doing so, the variables that have been changed include… The scenarios that will be explored in this report are: driving along Newnham Rd, driving across Broadwater Rd and driving on Broadwater Rd from Newnham Street.