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ABRP routed me off and immediately back on a highway

Bug Reports

I recently did a cross-country drive traversing the US from Massachusetts to California along highway 80. At several points during the trip, ABRP routed me off the highway and immediately back onto the highway at the same on/offramp.

I don’t know exactly when/where this happened, but the commonalities I noticed are areas where the on/offramps are relatively short, straight, and parallel to the freeway. It did not happen in populated areas or with cloverleafs etc.

Where does this happen?
ABRP version number (found at bottom of settings menu)
Posted by Des Voidborn ·
Status: Awaiting Clarification5 comments

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Comments5

  • Clarence Dold

    •

    Jul 19

    Along Highway US-101 in California, heading south from San Jose to Paso Robles, there are several places where the freeway seems to not be intact.

    I am directed to exit the freeway, and immediately return to the freeway.

    There is no traffic slowdown on the freeway.

    This might be areas where construction has occurred within the past ten years.

    Version 7.1.3 (5921) on Android Auto.

  • ABRP User #1900606

    •

    May 20

    This is also happening to me this week with Android Auto and ABRP version 7.1.0 (5853). Both going to and coming home from work, the map would want me to exit the freeway and then reenter. This would not save time as I would have ended up sitting at a traffic light before resuming my trip. Please fix or contact me if further information is needed.

  • Cor Ruiten

    •

    Apr 27

    Same thing happened to me this weekend on my round-trip from Southern California to Scottsdale, AZ.

    There was no traffic condition that should have warranted this strange routing on the four or five occasions that I encountered this problem on this trip…

    Here is a picture of one of these anomalies from planning the same route on the web-application this morning:

    Here is a screenshot from the car during our trip this weekend:

  • Des Voidborn

    •

    Aug 11, 2025

    Hi Bo, no, there was no traffic at the time and the highway was moving at speed. Nor were there any traffic advisories etc. in the area—the road was clear, both on the map and in reality.

    The only possible explanation I can think of, is that maybe ABRP thought the offramp was at the same speed as the highway and the distance was physically shorter. But even that doesn’t make a lot of sense because the highway itself was pretty straight in each of the cases I mentioned, so the offramps would have added distance (rather than subtracting it).

  • Bo (ABRP)

    Team•

    Aug 11, 2025

    Thanks for your report! Did this happen in situations with a lot of traffic where the routing system may have assumed you could save some time?