I lived in Worcester for about 12 years, and lived in both a nice secluded area, and a pretty rough area. Neither were at the top of their category, but I spent a lot of time in the areas on foot.

I left about two years ago, and while I was there the areas I went through were quite safe. The city itself was MUCH safer than when I first moved there. As a man, I understand I've got a bit of a different perspective, but I have walked alone, very late at night (2AM), down some rough streets. I only had an issue one time, and it was near the nice place I lived.

Since you won't have a vehicle, that will help you stay under the radar as far as being a target for theft. The area around Clark is not great, by any means, but its also not the worst. As you said, you're not going out at night alone. Avoid the park if you're by yourself, buy yourself some pepper spray and an alarm, and you'll probably be fine.

Keep to yourself and no one is going to bother you.