Is she crate trained? If she felt secure in her crate that would remove the "elimination" problem, as most dogs won't eliminate in their sleeping area. And she wouldn't see the passersby to bark. Some people think that crates are cruel when in fact dogs regard their crate as a safe haven or as their den. If you try the crate, you should try to go home at lunch to walk her so she can pee. Is this possible?

Would she be content in a crate?