These streets provide pedestrians a calm environment aside from the main street traffic.

The 20-foot high barrier continues onto land, where three large doors allow street traffic to pass through during calm seas.

In 1937, the arched stone pillars over embankments were extended from one to two spans (each side) to accommodate increased street traffic.

After the storm battered the island, rail and street traffic in the northern part of the island was halted due to mudslides.

Most of them have disappeared or were moved onto a fully dedicated right-of-way due to increasing street traffic and safety concerns.