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One-way streets get put in all the time. You'd wish there was progress, but unfortunately these things are cyclical, and the reasons why one-way streets are a very bad idea are soon forgotten if they don't get emphasised all the time. Add to that the facts that a lot of people intuitively, without thinking much, think they're a great idea (get games of chicken and fisticuffs in your street? easily solved--one-way streets!) and that filtering seems to people impossibly daring, taking away their freedom, and/or interfering with a 'modern' lifestyle, and one-ways can actually, indirectly, be prompted by a suggestion to filter.
The above options are really fairly standard. One-ways are in there because they're seen as intermediate between the most basic and the luxury option. Of course, they're not 'intermediate' but something completely different. I do hope the local campaign manages to persuade a lot of people to back Option 4. And, lest we forget--a few years ago, an Option 4 wouldn't even have been on the menu. There was a long period in which very little filtering was done in London.
Oliver Schick-
I think Option 4 has only really appeared after the road was closed due to the bridge works last year. I can't see it happening though, the council plan for Wightman Rd seems to be to shunt traffic down there when the developments for Wood Green happen (a lot of new housing and retail is being proposed).
One of the other issues with the one-way streets option is that it actually makes up 50% of the choices with each direction being a choice which skews it a little.
Looking at the local forum the one-way street isn't popular but I'm not sure how much influence that will have.
aggi
Looks like these are the options. Whilst everywhere else is moving away from one-way streets Haringey is viewing them as a solution.