Here is an article that articulates the importance of walking and pedestrian facilities in sustainability and ultimately fighting climate change. It argues that if we had the infrastructure and facilities to make it easier for people to walk, they will and are likely to walk rather than use their cars. This is not limited to short trips as walking can be in combination with public transportation, making it an integral part of trips where public transportation covers the main commute and walking is the proverbial last mile travel.
To quote from the article:
“Walking, biking, and transit need to be prioritized, and treated as legitimate forms of transportation. This means stepping up efforts to collect data on sidewalks the way we do for roads, investing in complete walking networks before engaging in expensive new road projects and making sidewalk construction and maintenance a municipal responsibility rather than an individual one.”