Thanksgiving is now just days away, which means plenty of people are gearing up for big trips this week. Planning a holiday getaway involves trying to pick the perfect moment to hit the road, figure out the best route and plan for crowds on the roads, rails and at the airport.

Dr. Gridlock can help. The Post’s transportation guru will be online today at noon, answering questions about holiday travel and anything else that comes up. If you have questions, or if you have trips for your fellow travelers, head here to submit them in advance and head back at noon for the chat.

And in case you missed it, Dr. Gridlock and Dana Hedgpeth discussed holiday travel with transportation officials last week in a live video webcast.