As me, probably many of my readers are unable to read Dutch. But it is not that essential to consult http://nederland.risicokaart.nl/risicokaart.html, an online map by the Netherlands Provinces Association which displays the natural and technological risks affecting the country. I don’t know to which extent that map is trustworthy, but it seems a rather good idea to take the transparency for citizens to that level; sure the Dutch case is special, as everyone is aware of what it means to live under the sea level, but they have gone the extra mile. Setting up such a system can help citizens looking for a dwelling; seen from the other side, this can play a role in real estate pricing, which is not prone to make friends in some areas.
Crime maps in some American cities are similar in approach; but when it comes to security citizens have an intuitive idea of how their city works (albeit not always a real one). When we talk about these risks the Dutch are mapping, there can perharps be a lost memory (the 500 years flood has perhaps never been experienced by living people), or simply the disaster never happened.