The City of Tampere provides incident and roadwork information API. API is provided by traffic control system and provides information on current incidents or roadworks that might effect traffic fluency. Data is integrated from Tampere traffic control system, The Tampere Rantatunneli traffic control and DigiTraffic traffic information for Tampere Region (minLat=61.3, minLon=23.4, maxLat=61.9, maxLon=24.3). API implementation is based on D2Light -standard and this API replaced the old Datex2 .based API.
More info on ITS Factory Wiki. which also includes API Documentation.