"Be warned that there are roadworks on the road from Tūja to Limbaži, and a bridge is being repaired by Staicele following Aloja," police representative Imants Mitrošenko said.
"If you drive through Mazsalaca, the time spent will be about the same if you were standing in traffic jams," he said.
"Mostly traffic jams start at Svētciems. I would suggest those not driving to the festival depart for Estonia on Thursday already," said Mitrošenko.
The police also advise that attendees shouldn't take valuables to the festival, should not use drugs and should drink alcohol in moderation to ensure everyone has a good time.
Thousands of visitors are expected from the Baltic states and beyond for Positivus, which has developed a growing international reputation.
You can find out more about Positivus at the official website HERE.