Traffic Congestion is considered one of the main problems that people around the world have to deal with. This problem can not only affect a certain individual life, but it can also lead to an economic crisis when not treated. Many have tried a lot of methods or strategies to redSuce traffic congestion, some are effective, and some are not. In the city of Manila, a number coding scheme known as Unified Volume Vehicular Reduction Program (UVVRP), is a very popular used method to alleviate traffic congestion in the area. Dolores Intersection at San Fernando, Pampanga is an intersection between MacArthur Highway and Olongapo-Gapan Road, and it is known to be the most used intersection in Pampanga. Therefore, at a certain hour, traffic congestion exists in the locale. This study about a simulation study of the effectiveness of UVVRP using PTV Vissim, helped the researchers as it identified the impact of having a volume reduction scheme on a certain time at Dolores Intersection. In this study, the researchers gathered data that are important to make the simulation work and produce precise results about the influence of the volume reduction at the research locale. The volume reduction that was simulated on the software PTV Vissim significantly impacted the traffic flow and reduced the traffic congestion happening during the peak hour at Dolores Intersection. Unfortunately, the researchers failed to gather data about the list of plate numbers of the vehicles passing through the intersection from the Land Transportation Office and decided to just used percentage reduction as a basis for not allowing a certain digit on the road. The researchers recommend further improving the study by collecting all the necessary data needed.