Although there are still challenges in predicting
when a dust storm will form, technology can
help relay safety messages quickly when it
does happen.
Hermann said the agency plans to finish
widening a 4-mile (6.4-kilometer) section of
I-10 by the end of this summer before the dust-
detection project begins.
Hermann said the system will be the first of its
kind in Arizona.
More than a decade ago, a system was installed
along I-10 from Benson to New Mexico that used
wind speed to set off flashing signs that alerted
drivers to the possibility of blowing dust.