This community service is conducted in the form of public health initiatives aimed at combating dengue hemorrhagic fever (DHF) in Indonesia. These initiatives are implemented in Labuh Baru Timur Village, RT 02/08, located in Payung Sekaki District, Pekanbaru City, Riau Province. The target beneficiaries of these activities include toddlers, children, adolescent girls, housewives, and the broader community. The primary objective of this community service endeavor is to enhance the knowledge of the targeted partner communities, particularly mothers who are members of POSYANDU (integrated health post), PUSKESMAS (community health centers), doctors, and village midwives, regarding the causes, consequences, and prevention strategies related to dengue hemorrhagic fever (DHF). The methods employed for executing this community service activity involved conducting household visits and organizing discussions on dengue hemorrhagic fever (DHF). Data about participants’ understanding of DHF were collected through pre-test and post-test questionnaires. The anticipated outcome of these efforts is to reduce the incidence of dengue hemorrhagic fever (DHF) and minimize its impact on affected individuals. In instances where residents are diagnosed with DHF and necessitate hospitalization, the objective is to facilitate their prompt and full recovery, thereby enabling them to resume their daily routines, including school attendance.

A traffic accident is an event that occurs in a traffic flow due to an error in the traffic shaping system that involves humans as drivers, vehicles, roads, and the surrounding environment. In this study, the road that was studied was Rantau Berangin - Ujung Batu which was a class III collector road with a length of ± 66.5 km. This study aims to determine the level of traffic accidents in the area to obtain the Accident Rate value on the Black Spot and Black site . The method in this research is a qualitative method to get the value of the Black Spot and Black Site based on the accident rate. The data used are primary and secondary data obtained from the Kampar Police from 2014 - 2018, as well as those related to traffic accidents. The results of analysis of the received data show that the rate of traffic accidents on roads Rantau Berangin - Ujung Batu is relatively high with 24 scenes of the accident, which roads rantau Berangin - Silam be the point most vulnerable areas of traffic accidents with Accident Rate of the Black Spot by 9,767 and the Accident Rate of the Black Site is 1,205. Meanwhile, the factors that cause traffic accidents on the Rantau Berangin - Ujung Batu road section are dominated by human factors themselves, such as driving at high speed in crowds and using other drivers' lanes.