Denver. Parking Excess of' exhaust fumes found in parking garages. 1955 p .5 City studies problem of exhaust. - '67 building doomed. Parking lot due on quinsey site, Post Ag 23 '55 P-3 Half-hour limit on down town parking urged, Post Ag 24 '55 p .3 Half-hour parking downtown urged b^^ committee., News Ag 24 '55 P-5,10 City 8 s parking group would ban 'free-time' in metered sections. News Ag 25 '55 P-5.8