Halifax is also known for its high walkability, particularly on the Halifax Peninsula, where 25-50% of residents regularly walk to work. Unlike numerous other North American cities, expressways were never built in the urban core (with the exception of the truncated Harbour Drive), resulting in high pedestrian connectivity. Peninsular Halifax is also mixed-use, contributing to an elevated quality of urban convenience and vibrancy as compared to suburban districts with highly segregated land use and car-oriented transportation networks. In recent years, the city has also begun to place increased emphasis on developing bicycling infrastructure.