AASHTO and AASHTOWare is a registered trademark and service mark of AASHTO.

Trns.port Estimator, the Trns.port Estimator logo, Trns.port Expedite, the Trns.port Expedite logo, AASHTO Trns.port, the AASHTO Trns.port logo, CES, the Trns.port CES logo, CAS, PES, LAS, the Trns.port LAS logo, BAMS/DSS, the Trns.port BAMS/DSS logo, SDMS, DARWin, IGrds, Pontis, Virtis, and Opis are registered trademarks of AASHTO.

The AASHTOWare logo, the Trns.port PES logo, the Trns.port CAS logo, Trns.port SiteManager, the Trns.port SiteManager logo, BRIDGEWare, the BRIDGEWare logo, the Virtis logo, the Opis logo, and the Pontis logo are trademarks of AASHTO.

AASHTO Trns.port, Trns.port CES, Trns.port Estimator, Trns.port PES, Trns.port Expedite, Trns.port LAS, Trns.port CAS, Trns.port SiteManager, Trns.port BAMS/DSS, Virtis, Opis, Pontis, IGrds, SDMS, and DARWin are proprietary software products of AASHTO

All other brands and product names are trademarks or registered trademarks of their respective companies.

AASHTO owns all rights to this Site including copyrights to the Electronic Books that may be accessed on the Site. No part of the materials on this Site may be reproduced, downloaded, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, except as expressly authorized by AASHTO.

Copyright © 2005 American Association of State Highway and Transportation Officials (AASHTO). All rights reserved.

American Association of State Highway and Transportation Officials
444 North Capitol Street, Suite 249
Washington, D.C. 20001
(202) 624-5800