The key parameters influencing the performance of heterogeneous traffic flow in urban environments. Heterogeneous traffic, characterized by the simultaneous presence of diverse vehicle types, presents unique challenges that require a nuanced understanding of various performance metrics. The study explores microscopic and macroscopic factors affecting the efficiency, safety, and overall functionality of heterogeneous traffic. From the perspective of different vehicles, including traditional automobiles, bicycles, pedestrians, and emerging technologies, this review delves into the critical parameters shaping the dynamics of heterogeneous traffic. By synthesizing current research findings and methodologies, the paper aims to contribute to a deeper comprehension of the performance parameters that are instrumental in enhancing the effectiveness and sustainability of urban mobility systems.