OpenStreetMap (OSM) provides detailed vector data representation of street networks worldwide, yet its level of detail can be challenging for some applications. Our research focuses on simplifying multi-lane streets into single lanes for pedestrian walkability modeling. We developed a Python tool that consolidates multi-lane streets while maintaining network continuity. Tested in Turin, Italy, our tool effectively simplifies OSM data. Our research contributes to OSM data simplification knowledge, and our tool is a valuable resource for modeling pedestrian walkability in various urban environments. https://github.com/achic19/micro_walking/tree/master/notebook/output/turin