Original sentence: Even though the island is just minutes off interstate highway 880, the speed limit on the island is 25 mph (40 km/h) on almost every road.Groups like Pedestrian Friendly Alameda and BikeAlameda advocate stronger enforcement of speeding laws.Speeding tickets are a significant source of revenue to the city
Edited sentence: Currently, signs on the entrances to the city warn drivers of the speed limit and the need to be courteous to pedestrians, but groups like Pedestrian Friendly Alameda and BikeAlameda think otherwise.Even though the island is just minutes off interstate highway 880, the speed limit on the island is 25 mph (40 km/h) almost entirely throughout.They used to be a source of revenue to the city because the Alameda police used to be very diligent in writing traffic tickets