Beaver Hills

To Public Works - please explain:

Why are there 2 seperate rules for different neighborhoods regarding street sweeping? In the 'less suburban' areas of New Haven, there is a 'TAG AND TOW' policy which means when street signs are posted for street sweeping - your car can and most likely will be tagged and towed if on the street where cleaning is scheduled to take place. But in the 'non-inner-city' areas, the policy on the City of New Haven Public Works website clearly reads '...Tag and Tow doesn’t operate in the following neighborhoods'. See the policy below taken directly from the City Public Works webpage (http://cityofnewhaven.com/PublicWorks/sweep/index.asp):

Tag and Tow Routes include:
Route # 2 - Beaver Hills
Route # 3 – Newhallville & Prospect & Grove
Route # 4 – East Rock & Cedar Hill
Route # 5 - Fair Haven(from Blatchley Ave)
Route # 8 - Wooster Square & Fair Haven (to Blatchley Ave)
Route #10 - West River & Dwight Edgewood
Route # 12 – Hill (North)
Route #13 – Hill (South) & City Point

No Tag and No Tow Routes include:
Route # 1 – Amity/West Rock
Route # 6 – Fair Haven Heights & Foxon
Route # 7 – Fair Haven Heights & Annex
Route # 9 – Downtown (during evening hours)
Route #11 – Westville
Route # 14 – Annex & East Shore
Route # 15 – Morris Cove & East Shore

Please explain.