RIDOT maintains a policy that specifies the number of trafficpersons (typically law enforcement officers) and flaggers required to safely control traffic through work zones.

Standard Specifications for Road and Bridge Construction
2010 Blue Book Standard Specifications for Road and Bridge Construction (12/2010)
Compilation of Approved Specifications
Provisions
Bridge Engineering Publications
LRFD Bridge Design Manual
Bridge Design Manual (BDM) Question and Answers
Bridge Design Standard Details - dwg files (2009)
Bridge Design Standard Details - pdf files (2010)
CADD Bridge Drawing Files (11/10/2006)
Traffic Engineering Manual
- Appendix A. Traffic Signal - General Notes
- Appendix B. Relevant DPMS and to All Consultant Letters
- Appendix C. Example Forms, Charts and Tables
Rhode Island Standard Details
Rhode Island Standard Details (10/1/2010)