In the Philippines, certain vehicles are not allowed to use expressways or limited-access highways for safety reasons. These include:Motorcycles with engine displacement below 400ccBicycles and pedicabsTricycles and kuligligsE-bikes and electric scootersAnimal-drawn cartsVehicles not designed for high-speed travelExpressways are meant for fast-moving, long-distance travel. Smaller or slower vehicles are more likely to cause accidents or traffic congestion if allowed. According to RA 2000 and DPWC AO No. 1 s. 1968, only properly registered vehicles that can maintain expressway speeds are allowed.Drivers caught violating these rules may be fined or prohibited from entering expressways again. Following these restrictions keeps both fast and slow vehicles safe by separating them based on speed and capability.