Officials conduct safety training exercise ahead of Boston Marathon

BOSTON (WHDH) - The 121 running of the Boston Marathon is set for April 17 and final preparations for the race are underway.

The Massachusetts Emergency Management Agency and the Boston Athletic Association conducted a test exercise on Tuesday. The test replicates race day. The goal of the test is to test responses to different scenarios.

Officials said the exercises tested the first responders coordination, communication and decision making capabilities.

In addition to those measures, a low-flying helicopter will be above downtown Boston to measure naturally occurring radiation this week.

The race kicks off in Hopkinton at 9 a.m. on Monday. Officials expect see to 30,000 runners and a million fans cheering those runners on.

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