Contact Us
HEADQUARTERS
400 Crain Highway, N.W.
Glen Burnie, Maryland 21061

410.590.5500 Telephone
410.590.6637 FAX

PRINCIPALS
David A. Nelson, P.E.         dnelson@streettrafficstudies.com
Mike Nalepa                       mnalepa@streettrafficstudies.com
Robert R. Zacherl               rzacherl@streettrafficstudies.com

ADMINISTRATION
Tammy Scott                      tscott@streettrafficstudies.com
Spencer Nelson                 snelson@streettrafficstudies.com

TECHNICAL STAFF
Robert Cicchini                  rcicchini@streettrafficstudies.com
Bill Nies                             wnies@streettrafficstudies.com
Dave Nies                         dnies@streettrafficstudies.com
Andrew Zacherl                azacherl@streettrafficstudies.com