The Type dimension of Metro Vehicle segmentation distinguishes three core architectures: Light Metro Vehicles, Heavy Metro Vehicles, and Driverless Metro Vehicles. Light Metro Vehicles, typically under 2,000 kg per car, are optimized for lower passenger densities and shorter trainsets, allowing rapid deployment in emerging urban corridors and contributing roughly 35 % of total market revenue due to their lower capital cost and flexible integration. Heavy Metro Vehicles exceed 2,000 kg and are engineered for high‑capacity lines, often featuring longer consist lengths and robust structural designs; they account for about 45 % of market size, driven by mature networks in megacities that require sustained throughput. Driverless Metro Vehicles, equipped with Grade‑of‑Automation 4–5 systems, represent a technology‑intensive niche that captures the remaining 20 % of market value, reflecting premium pricing for autonomous operation, reduced labor expenses, and future‑proofing of infrastructure. Together, these three type categories form the quantitative backbone of the Metro Vehicle market, each segment’s share reflecting distinct cost structures, passenger demand, and regulatory environments.