Hello,
It doesn’t appear that there is pedestrian access after looking at the location on Google Maps and Street View, such as a sidewalk. It does appear that this road is mainly for vehicle access, especially since there are several driveways for the homes nearby. Yes, pedestrians may use it, but it may not always be safe for pedestrians.
Also, it looks to be on private property, and Little Free Libraries on private properties are not eligible. There is additional information about LFLs eligibility here: