A traffic police officer in Yangpu District works at a busy intersection on Monday morning.

A police officer in Jinshan District removes fallen plants from a blocked sewage opening.

Police in Hongkou District lead the way for bikers and e-bikers to cross Huangpu River via Dalian Road Tunnel.

Police officers in Songjiang District remind residents to move their plants on the balconies inside to prevent them from falling in gales.

A police officer in Jinshan District helps evacuated people settle in a temporary shelter.

Some of Shanghai's elevated roads were more congested than usual on Monday morning as Typhoon Chanthu approaches, police said.

Especially congested were parts of Yan'an Elevated Road between the Outer Ring Road and the North-South Elevated Road, the North-South Elevated Road from Guangzhong Road to Luochuan Road as well as parts of Humin Elevated Road and the Inner Ring Road, according to police.

Meanwhile, the number of traffic accidents reported on Monday morning between 7am and 9am was up 29 percent from the previous Monday, according to traffic police.

Shanghai police said their 110 call center received more than 50 reports from 7am to 9am on emergencies caused by bad weather, most of which were related to fallen trees and falling objects from high places.

No injuries were reported.

Over 50,000 officers are patrolling the streets to protect the safety of the residents around the city, said the city police.

New closures

Donghai Bridge, which connects Pudong of Shanghai with Zhoushan city in neighboring Zhejiang Province, was closed in both directions starting from 10:30am on Monday, while most of the expressways in Shanghai lowered their speed limits.

The Bund has been closed since 12am on Monday.

Shanghai History Museum announced that it will not open on Tuesday. The museum closes on Mondays.