Problem

• Looking for a place to live in big cities is hard
• One wants to live near friends, near work, near hobbies, and in certain areas
• No real state portal offered a way to search for properties within a commute time from a point

Solution

• A system that calculates isochronic areas around a point
• Precalculating and caching distances for every 5min time, and rounding latitude and longitude to a certain floating point
• A search engine where areas can be combined. (e.g. 30min from work, 15min from friends)