Sharraxaadda

The sidewalk near the entry to where I live at 1775 Mass Ave was recently smoothed out over some gaps and bumps in the sidewalk concrete - it was repaired with what seems like roadway asphalt. I wondered why this material was used because it doesn’t match the sidewalk - I wondered if it was just a temporary fix before the sidewalk is redone. Can you let me know?
I know you do a great job keeping Cambridge in really nice shape and I appreciate all you do to make our town so livable. this is a small matter I know but I think about it every time I pass by.
Thanks for your attention, Eileen