Motorway traffic management is becoming more and more crucial due to the increase of mobility in urban and motorway networks. The continuous development of intelligent traffic management strategies enables the deployment of advanced motorway control strategies without the need of infrastructure intervention. The project investigates and evaluates the potential of using adequate ramp metering strategies to mitigate traffic congestion on the Swedish motorways. In particular, the Södra Länken motorway tunnel in Stockholm is studied, which is prone to temporary closures due to congestion. The research involves, a data-driven analysis to understand the network traffic dynamics and to identify critical bottleneck locations and appropriate ramps where metering can be feasible (e.g. with sufficient storage capacity) and beneficial. Traffic simulation is used in order to assess the performance of the ramp metering strategies under different congestion patterns. The analysis evaluates and compares the feasibility as well as the impacts of the various ramp metering strategies in terms of their efficiency in reducing traffic congestion in the network. Recommendations and insights for the most promising metering strategies and their implementation requirements are provided to the traffic authorities as the basis for decisions on potential field deployments.