Yes Annie, your right Carpooling and vanpooling need to advertised more. But I'm still spectacle and how safe are carpooling and vanpooling services. It's true, There are lot of organizations which provides cars for rent, but I feel renting car is an option but not effective if it is again used by only as solo-drive. It will be really good if you share your journey with people which reduces carbon emission.
Tom, As I do not have a car, my colleagues themselves took the imitative to do carpooling so that I can reach to work. They pick and drop me off from home to work , conferences and meetings! I studies and work is on sustainability. With my experience, it is very much important to educate more about alternative transportation and make a cultural habits which will help the future.
Ashley, Thank you for sharing your experience! It's just been 2 months I'm in Grand Rapids always my experience was great. I always feel trouble same like you in finding bus on weekends to reach to downtown or to travel near west Michigan route. In addition, we don't have bus facility at walkent where I work daily. It will be good if we increase bus frequency and routes and may be helpful people like us. Thank You