The Minnesota Department of Transportation says motorists traveling on Highway 169 and 22 in Mankato should expect a change in traffic pattern beginning next week. MnDOT says they will be testing and updating the timing of 11 traffic signal systems to reduce motorist delay beginning next Monday. MnDOT Traffic engineers say they choose next week due to the uptick in traffic from holiday shoppers. State officials say when the adjustments are finalized, motorists will benefit from reduced delays, stops, fuel usage, emissions, and wear and tear on their vehicles.