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Walker’s David Lieb Among First to Earn TDM Credential

David Lieb, TDM-CP

Congratulations David Lieb, National Director of Higher Ed Mobility Planning at Walker, for being announced as one of the first 26 recipients to earn the Transportation Demand Management Certified Professional (TDM-CP) credential! David is among a handful of certified specialists proving their proficiency and broad knowledge of TDM industry standards, regulations, and best practices.

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