David Koffman is a Principal at Nelson Nygaard with over 35 years of experience. He is a leading authority on paratransit, specialized transportation, and taxicab regulation, focusing on improving mobility for seniors and people with disabilities. He holds a Master in City Planning from Harvard and a B. S. in Mathematics from MIT.
His research has explored innovative uses of public transportation, including the effective use of taxicabs for 911 emergency response.