In case anyone is heading that way, just after the fishbourne roundabout, rtc involving motorbike. Road closed so imagine the rest of Chichester is choas.
Returned from a weekend away in Rye, and was informed by my Garmin Sat Nav when approaching Arundel of the road closure, which cleverly diverted me around the incident, guess it saved me lots of time. Lets hope the rider involved makes a full recovery.