?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=T&rft.aulast=Wang&rft.au=Wang%2C+T&rft.date=28+July+2017&rft.tpages=163&rft.inst=UCL+(University+College+London)&rft.title=Visual+perception+of+the+unevenness+in+the+footway+surface&rft.degree=Doctoral