The IV line of the Warsaw metro is set to connect two significant districts, Białołęka and Wilanów, enhancing the city's transportation network. Although the exact timeline for the main construction is not yet clear, preliminary work has commenced with the initiation of approximately 1450 geological drillings and surveys, as announced by Warsaw's Mayor Rafal Trzaskowski through social media. This phase is crucial for determining the technological solutions needed for the safe execution of the project.

Mayor Trzaskowski emphasized that every significant investment begins with smaller steps, highlighting the importance of these geological drillings in preparing for major construction efforts. The investigations will help understand the ground conditions below the surface, which is vital to ensure that the construction of the metro can proceed safely and effectively. This methodical approach sets the groundwork necessary for what is expected to be a transformative infrastructure project for Warsaw.

The IV metro line is projected to span at least 26 kilometers, featuring fully autonomous operations and three types of stations. Its planned route will traverse several key districts, starting from Białołęka and passing through Bielany, Żoliborz, Wola, Ochota, and Mokotów, thus promoting greater connectivity and potentially boosting local economies. This project has been eagerly anticipated by many residents, indicating it holds significant local political and economic importance.