The Paris Métro is designed for high-frequency urban density rather than long-distance speed, and its average commercial speed—which includes time spent at stations—is approximately 20 to 25 kilometers per hour (12 to 15 mph). While this may sound slow compared to a car on a highway, the Métro is incredibly efficient because the stations are positioned very close together, typically only 500 to 600 meters apart in the city center. This means a train is never more than a few minutes away from its next stop. Some of the newer, automated lines, such as Line 14, are faster, reaching top speeds of up to 80 km/h between stations and maintaining a higher average speed because they have fewer stops and more advanced acceleration and braking systems. For your city data project, it is worth noting that while the Métro is the king of short urban hops, the RER (Réseau Express Régional) is the faster "big brother" system, designed to move people from the suburbs into the city at much higher average speeds of about 50 km/h, with fewer stops and longer distances between stations.