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APPENDIX G
Transportation Emergency
Response Effects Tracking (TERET)28
Transportation Emergency Response Effects Tracking (TERET) is a tool developed under
NCHRP Project 20-59(19), which was published as NCHRP Report 525: Surface Transportation
Security, Volume 10: A Guide to Transportation's Role in Public Health Disasters. TERET is designed
to assist transportation and emergency managers in projecting potentially critical conditions that
may develop because of changes in transportation services caused by a large emergency event.
During both response and recovery from an emergency event, emergency response actions can
alter traffic patterns that cause traffic detours and lane redirections, restricted access, reduced or
suspended service, equipment and personnel reallocations, etc. These changes or disruptions in
traffic patterns may have critical effects on deliveries and worker transport for essential services
that must be continuously maintained despite emergency events. Altered traffic patterns may also
influence, and be influenced by, the use of the transportation system for mass care needs associ-
ated with an emergency event.
TERET is a Microsoft ExcelTM workbook designed to help managers and planners assess the
effects of emergency response actions on transportation at state and local levels. TERET has two
separate components. These components and their objectives are
· Essential Services Transportation--Use of the transportation system to provide essential ser-
vices for community health and sustenance. TERET's objective is to (1) assist in identifying crit-
icalities that may arise in essential services as a result of traffic pattern changes and associated
delays in deliveries and services and (2) facilitate identification of solutions to prevent or mit-
igate these criticalities.
· Mass Care Transportation--Use of the transportation system to (1) transport people to decon-
tamination, triage, and medical service/hospital sites, and (2) provide supplies needed for pop-
ulations in shelter-in-place, temporary shelter, and quarantine shelter. TERET's objective is to
provide a list of some of the types of transportation that may be needed for these actions and
to calculate the remaining time these transportation services will be needed based on command
chain estimates of the overall duration of these needs.
28
This text was adapted from the cited report. (NCHRP Report 525, Volume 10, 2005)
155
