Perhaps the best way to resolve those issues is to research double glazed windows and then present a proposal to the committee. If road noise is a bother to you, it probably is to other residents too. If window replacement is already under consideration, why not offer to do the leg-work to find out what would be best, get quotes etc. The committee might be very grateful to have someone take a task off their hands. This way, you can make sure a good option gets proposed to the owners and that you have the committee’s backing.
Note that double glazing just for noise, only needs a narrow gap of a few mm between the sheets of glass and the framing does not need a thermal break. I would go the extra step of making sure the double glazing is worthwhile thermally as well. For good thermal insulation, you need frames that don’t ‘short circuit’ the panes by conducting heat through the frames. You also need a gap ideally of about 12-15mm, 8mm at a minimum.
Good thermal double glazing will help keep the heat out in summer as well as the heat in in winter.