![Mathilde Carlier](https://cdn.statcdn.com/static/../CMS/contactperson/ERI2785_1713774293.png)
Average speed in Europe's most congested cities 2017
The statistic shows Europe's most congested cities in 2016, based on congestion level. In that year, Rome had a congestion level of 40 percent, meaning that an average trip made took 40 percent longer than it would under uncongested conditions.