The rise in traffic volume in urban regions presents a threat of microplastics contained in road dust into the urban air. Due to their little weight and ease of airborne suspension, these particles have the potential to pollute the air and endanger human health. This study was to examined the abundance, type, and shape of microplastic in the ambient air from transportation activities in Pekanbaru City. The sampling points across three road classifications which were arterial, collector, and local street, along with a control point. The traffic volume at each location was assessed utilizing the traffic counting method. Method of collecting microplastic data in the air using the passive sampling method. Identifying the types and form of microplastic polymers in the air contained in dust samples on road sections at the research location using Differential Scanning Calorimetry. The research findings indicate that the greatest abundance of microplastics was in the site with the highest traffic volume. The highest abundance of microplastics recorded on arterial street was 0.251 particles/m3, on collector Street was 0.172 particles/m3, on local Street was 0.119 particles/m3, and at the control site devoid of transportation activity was 0.015 particles/m3. The correlation analysis revealed a significant association between traffic volume and microplastic abundance at each sampling site. The results of microplastic identification obtained were in the shape of fragments of 22.84%, in the shape of fibers of 70.05%, and in the shape of films of 7.12%. The microplastic polymer type identified were Polyvinyl Chloride (PVC) and Polycarbonate (PC)