 Of the rest of the land, or 58.1% is settled (buildings or roads), or 2.1% is either rivers or lakes and or 0.1% is unproductive land.Of the built up area, industrial buildings made up 8.6% of the total area while housing and buildings made up 23.7% and transportation infrastructure made up 12.4%.while parks, green belts and sports fields made up 12.5%.