If snow is a bargain for ski resorts, It represent a real nightmare for major cities for which it is more used as a synonym for blocked cars and economic cripple as have shown last snowy episodes of December 2017 including in Lyon, France.
Although cities have a set of measures for maintenance and reinstatement of traffic conditions (known as « Winter road maintenance ») it is not enough. To function, these measures mostly rely on information from weather monitoring models which are coupled with a set of predictive scenarios. Modelling and predictive systems which are inherently not located enough and don’t sufficiently exploit the observation data to be used in an effective way.
Furthermore, these measures are very expensive for the municipalities: for example, the French Interdepartmental East Roads Directorate spent around 5 million euros (excluding personnel costs) during winter in 2015/2016 which wasn’t that hard.
But how is it still possible that in the Smart Cities era major cities are still surprised by such events?
IoT to locally anticipate better
To maintain traffic conditions and better preserve environment by limiting the use of salt and other derivatives, the watchword is: “location based anticipation”. To anticipate in a located way, cities need to be able to define which salts or derivative products they can spread at the best moment, not too early neither too late to make this operation locally effective against icing or to avoid that snow stays on the ground in the very necessary areas.
With the advent of Internet of Things (IoT) technologies of information and communication provide a cost-effective mean for anticipation to mesh a large territory in an extremely detailed way to measure continuously and monitor in real-time.
It is possible for example to install wireless and miniaturized smart sensors at strategic points to measure continuously road surface temperature or air humidity. Operators access these data via Internet and follow in real-time the evolution of temperature and humidity curves to monitor “dew point” also called “frost point”.
Economic and environmental issues
The roads network is unquestionably one of the mainstay of our economy! The maintenance in operational condition of roads infrastructures and of the urban roads networks is possible today by the combination of IoT and “winter road maintenance” programs while optimizing human and material deployed resources. The report of data in real-time added to weather agencies, enrich the decision-making process for municipalities to react faster face to very often located phenomenons. The reliability, the accuracy and the immediate character of the information gathered thanks to these new IoT based systems confer a bigger agility.
Finally, the aim is to optimize the usage of material and human resources while limiting the consumption of de-icers for a better control of the program costs.
It is time to stop theorizing about what IoT can provide to cities and specifically use new technologies to improve citizens’ daily lives. Simple and reachable solutions exist to really go into the advent of the Smart City, especially with regard to weather crises. It’s up to cities to seize this opportunity. The ball is in their camp!