During an evacuation, EOC officials will call on transportation representativesto provide critical data. Transportation agencies can provideexperts in many areas, including planning, transit, traffic engineering,highway construction, and maintenance. As an example, maintenancepersonnel or contractors can provide supplies en route or at rest areasand can assist with debris removal, roving highway incident responderscan aid stranded motorists to clear lanes, and construction staff or contractorscan assist with controlling traffic by managing the ingress toand egress from designated evacuation routes. Traffic engineering staffcan provide in<strong>for</strong>mation on the condition of the roads and potentialinfrastructure-related impedances, supply ITS resources, time trafficsignals, and provide traffic control devices such as cones, barriers, andsigns to assist in directing traffic during the evacuation.As part of these activities, transportation agencies will need to maintainfrequent communication with the emergency management agencyand other entities involved in the evacuation. At the same time anEOC is activated, transportation agencies may have a TMC activatedas well, and staffed with individuals trained in monitoring roadwayconditions. Ideally, the EOC would be linked electronically with theTMC so that the same in<strong>for</strong>mation can be viewed at all locations, allowingtransportation staff to interpret in<strong>for</strong>mation quickly and orderassets needed by the emergency managers. In addition, particularly incases where electronic linkages are <strong>no</strong>t feasible, the relevant transportationagencies should send representatives to help staff the EOC, collectsituation status in<strong>for</strong>mation, provide technical advice on what assetsthe DOTs may provide, and order items. This communication strategywill allow transportation agencies both to maintain better awarenessof the overall situation and to ensure that they are providing criticalin<strong>for</strong>mation to the command structure.evacuation phasesThe first Primer in this series, Using Highways During Evacuation<strong>Operations</strong> <strong>for</strong> Events with Advance Notice, describes in detail the phasesof an evacuation. The phases are summarized here to provide readerswith a clear high-level understanding of the types of activities – be<strong>for</strong>e,during, and after an evacuation – which an effective evacuation planwill address.Readiness Phase – The Readiness Phase does <strong>no</strong>t always occur dur-24 USING HIGHWAYS FOR NO-NOTICE EVACUATIONS
ing a little- or <strong>no</strong>-<strong>no</strong>tice evacuation. If it does occur, it will be briefand minimal in scope. This is the time when in<strong>for</strong>mation about anincident becomes available, and decision makers use this in<strong>for</strong>mationto determine whether an evacuation is necessary. After a <strong>no</strong>-<strong>no</strong>ticeincident there is usually a delay in the flow of in<strong>for</strong>mation to decisionmakers; evacuation decisions will likely need to be made be<strong>for</strong>e a completepicture of the situation is available.The numerous challenges related to an incident with a <strong>no</strong>nexistent orminimal Readiness Phase should prompt an emphasis on transportationpreplanning ef<strong>for</strong>ts. As discussed further in later sections of thisPrimer, transportation officials should do as much preplanning as feasibleon all aspects of their transportation infrastructure, including but<strong>no</strong>t limited to possible evacuation routes; the capacity, safety, and potentialchokepoints of those routes; redundant transportation capacityin case of roadway damage; locations of evacuation routes in relationto potential sheltering destinations; contra flow plans and other trafficmanagement tactics; and up-to-date inventories of available resources.Activation Phase – The Activation Phase encompasses everything leadingup to the actual evacuation of citizens. During this phase, relevanttransportation officials and agencies should be made aware that anevacuation is taking place, a command structure should be establishedbased on ICS principles, TMCs should be activated, transportationUSING HIGHWAYS FOR NO-NOTICE EVACUATIONS25