There were two fatalities across the Blue Mountains early this week, with the Bells Line of Road and Great Western Highway at one point shut to traffic headed east.

The driver of a car - a 76-year-old man - hit by a truck on the Bells Line of Road died at the scene while a pedestrian - a 21-year-old woman - was also hit by a truck and killed at Blaxland in a separate incident.

As a result of the state reopening post COVID-19 restrictions, motorists can expect delays and increased traffic on the roads in areas across the state, especially on weekends.

Traffic and Highway Patrol Command Operations Commander Acting Superintendent Ben Macfarlane said police were deeply saddened by the deaths on roads this week in the state's west, south-west and south, bringing the total lives lost this year to 236.

"There are families, friends and communities grieving right now for loved ones lost on NSW roads this week. Our hearts go out to them," said Acting Superintendent Macfarlane.

"Traffic and Highway Patrol Command will continue to do everything in our power to keep people safe on the road, but we need the understanding and the help of road users.

"Please think of others on the road by driving safely. There is no excuse for behaviour that endangers lives, and those ignoring road safety messages and disobeying road rules can expect swift police action."

"With a wet weekend forecast in some areas, we're also continuing to urge motorists to slow down, be patient, plan ahead, drive to the conditions and keep your eyes on the road."

Police from Traffic and Highway Patrol Command and local officers will maintain a strong presence on roads across the state to ensure people are following the road rules.

They will be looking out for dangerous, distracted, drug and drink driving (Four Ds) - among other offences - that put road users at risk.

Our journalists work hard to provide local, up-to-date news to the community. This is how you can continue to access our trusted content: