Roads thumb|Barrandov Bridge, part of the Prague Inner Ring Road |alt= The main flow of traffic leads through the centre of the city and through inner and outer ring roads (partially in operation).Inner Ring Road (The City Ring "MO"): surrounds central Prague. It is the longest city tunnel in Europe with a length of and five interchanges has been completed to relieve congestion in the north-western part of Prague. Called Blanka tunnel complex and part of the City Ring Road, it was estimated to eventually cost (after several increases) CZK 43 billion. Construction started in 2007 and, after repeated delays, the tunnel officially opened in September 2015. This tunnel complex completes a major part of the inner ring road.Outer Ring Road (The Prague Ring "D0")''': this ring road will connect all major motorways and speedways that meet each other in Prague region and provide faster transit without a necessity to drive through the city. So far , out of a total planned , is in operation. Most recently, the southern part of this road (with a length of more than ) was opened on 22 September 2010. As of 2021, the next section between Modletice and Běchovice is planned to be completed in 2025.
Roads thumb|Barrandov Bridge, part of the Prague Inner Ring Road |alt= The main flow of traffic leads through the centre of the city and through inner and outer ring roads (partially in operation).Inner Ring Road (The City Ring "MO"): surrounds central Prague. It is the longest city tunnel in Europe with a length of and five interchanges has been completed to relieve congestion in the north-western part of Prague. Called Blanka tunnel complex and part of the City Ring Road, it was estimated to eventually cost (after several increases) CZK 43 billion. Construction started in 2007 and, after repeated delays, the tunnel officially opened in September 2015. This tunnel complex completes a major part of the inner ring road.Outer Ring Road (The Prague Ring "D0")''': this ring road will connect all major motorways and speedways that meet each other in Prague region and provide faster transit without a necessity to drive through the city. So far , out of a total planned , is in operation. Most recently, the southern part of this road (with a length of more than ) was opened on 22 September 2010. As of 2021, the next section between Modletice and Běchovice is planned to be completed in 2025.