Put away the phone and drive. Major road work begins across Indiana.

Motorists will navigate around a record number of state road projects this year — more than 1,100 across Indiana. It will cost more than $2 billion, but Indiana Department of Transportation officials are trying to avoid the human cost: 15 people died last year in INDOT work zones, compared with an average of 12 in recent years, said spokesman Adam Parkhouse.

In the past five years, he said, about 80 percent of those deaths have been motorists and the rest have been road workers.