Tweets Improve Urban Planning (IMAGE) Spanish Foundation for Science and Technology Caption Layout of businesses, nightlife and leisure areas in Madrid using Twitter are illustrated here. The uncolored part corresponds to residential areas. Credit V. y E. Frías-Martínez Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.