The repeal of ordinances provided by Section 57478 shall not apply to any of the following:

1. (a) Ordinances under which vested rights have accrued.
2. (b) Ordinances relating to proceedings for street or other public improvements.
3. (c) Ordinances relating to zoning or land use regulation.

4. (d) Proceedings for opening, extending, widening, straightening, or changing the grade of streets or other public places.

   These proceedings shall be continued and conducted by the successor city with the same effect as if continued and conducted by the city which commenced them.