The station , in partnership with MetroNetworks , launched the TrafficTracker truck during the 2004 Democratic National Convention , which was held in Boston . With traffic reporter Marshall Hook behind the wheel of one of the station 's live vehicles , WHDH became the only station in the market to produce live traffic reports from the road . The station continues to use the TrafficTracker during snowstorms , including the December 13 , 2007 storm that resulted in paralyzing commutes that , in some cases , exceeded seven hours
2004 Democratic National Convention
2004 Democratic National Convention
WHDH (TV)