Shanghai Metro Line 22 Completes Track Connection for...

Shanghai is finalizing the launch of its first cross-Yangtze metro corridor, with Line 22 completing full track connection and advancing dynamic train testing to link Pudong with Chongming Island.

Strategic Expansion of the Chongming Line

Shanghai Metro Line 22, designated as the Chongming Line, has reached a pivotal construction milestone, achieving full track continuity across its 42.3-kilometer route. This corridor represents the city’s first urban rail link designed specifically to cross the Yangtze River, integrating the outlying Chongming district directly into the metropolitan transit grid.

The route originates at Jinji Road Station in the Pudong New Area and terminates at Yu’an Station on Chongming Island. To achieve this connection, the line traverses Changxing Island via a series of underwater tunnels. These cross-river sections are identified in government construction reports as the most technically demanding portions of the project due to complex geological conditions and the requirement for extended underwater tunnel drives.

While the Shanghai Yangtze River Tunnel and Bridge previously provided road access to Chongming and Changxing islands, the bridge was engineered with a reserved lower deck specifically for future rail transit. Line 22 is the activation of that long-term infrastructure plan.

Construction Timeline and System Validation

The project entered its final implementation phase following the welding of the final steel rails at Chenjia Town Station on April 21, 2026. This completion allowed the project to shift from heavy civil engineering to electromechanical installation and integrated systems testing.

Current operational status indicates that dynamic testing is underway across two primary segments:

Southern Segment: Testing began in late May 2026 between Jinji Road and Changxing Island, focusing on signaling performance, power supply, and track geometry.
Northern Segment: By late June 2026, operations extended from the Chenjia Town depot to Changxing Island, facilitating end-to-end dynamic trials.

Official project schedules target a full commercial opening by the end of 2026, pending final safety assessments and regulatory approvals from transport authorities.

Route Specifications and Service Patterns

Line 22 utilizes high-capacity electric multiple units (EMUs) featuring all-longitudinal seating to manage peak commuter volumes. The service is designed as a rapid transit corridor with wider station spacing, particularly across the river-crossing sections.

Parameter	Specification
Total Route Length	42.3 Kilometers
Primary Termini	Jinji Road (Pudong) $\leftrightarrow$ Yu’an (Chongming)
Key Transit Points	Changxing Island, Chenjia Town Station
Infrastructure Type	Urban Rail / Underwater Tunnel
Target Opening	End of 2026
Primary Connection	Jinji Road Station (Links to Pudong East-West lines)

Traveler Logistics Guide

From a ground-level perspective, the introduction of Line 22 fundamentally alters the geography of North Shanghai. Previously, reaching Chongming Island required a fragmented combination of ferries, intercity buses, and expressways.

Navigating the Connection: The primary gateway for travelers will be Jinji Road Station. To optimize travel from central Shanghai, passengers should plan for a transfer at Jinji Road to access the Chongming Line. Because this is a limited-stop corridor, travelers should verify the specific stop locations on the northern segment, as interstation distances are significantly longer than those found in the city center.

Digital Transit & Policy: Travelers are advised to ensure their transit apps are updated to include the Line 22 maps. For those utilizing digital identity systems like Digi Yatra or local Shanghai transit QR codes, ensure account synchronization to allow seamless transfers between the Pudong lines and the new Chongming corridor.

Optimal Travel Window: Given the high-capacity longitudinal seating designed for commuters, off-peak travel is recommended for tourists visiting Chongming’s ecological parks and wetlands to avoid the peak-hour crush from the island's residential zones.

Infrastructure Impact Assessment

The activation of Line 22 transforms Chongming Island from a remote ecological outpost into a connected suburb. By replacing slow-speed surface transport with a single-seat metro ride, the practical distance between the island and Shanghai's core business districts is drastically reduced.

This connectivity aligns with the Yangtze River Delta regional strategy to promote low-carbon development. The rail link is expected to catalyze growth in sustainable tourism and environmental research facilities on the island while reducing the carbon footprint associated with cross-river vehicle traffic. Furthermore, the interface at Jinji Road provides Chongming residents with streamlined access to high-speed rail hubs, strengthening the island's tie to the broader national rail network.

The completion of Line 22 marks the end of Chongming's transit isolation and the beginning of a new era for the Yangtze estuary.