The victim reported that she was bitten by a large black dog, possibly a German Shepherd, shortly after 8.25am on Thursday 9 May 2024.
The incident happened as the woman was waiting at the level crossing on Sturry Hill/Island Road.
The dog was reportedly being walked by two women, described as being in their 40s, one of whom was wearing a pink coat.
Anyone who witnessed the incident or who has dashcam footage which might assist is urged to call Kent Police on 01843 222289, quoting reference 46/76579/24.