There is heavy traffic in this street.
There is heavy traffic on this road.
There is a great deal of traffic on this road.
There is heavy traffic on this street.
There's heavy traffic on this road.
This street is much frequented by passengers.
The street is much frequented.
This street is much frequented by passengers―thronged with passengers.
This road is frequently crowded.
There is much traffic in this street
There is a lot of [not much] traffic in this street.
There is little automobile traffic on this road.