Old Shanghai lives at Chedun, the film set built to outlast the real thing

The tram at Chedun (车墩, Chēdūn) runs a loop of maybe two hundred metres, past a bank that was never a bank and a cinema marquee that has carried the same film for years. This is a set, not a street, and it has never pretended otherwise — which is why the 1930s Shanghai it keeps is in some ways more intact than the one downtown. On a weekday the tram bell is the loudest thing you will hear, and the man ringing it is in period uniform because the frame demands it, not because you paid for the show.

A city rebuilt to be filmed

Shanghai Film Park (上海影视乐园, Shànghǎi Yǐngshì Lèyuán) sits in Chedun town, in Songjiang District (松江区), roughly an hour southwest of People's Square by car. It opened in 1998 as a working backlot for the Shanghai Film Group and still earns its keep that way: crews book the Bund (外滩, Wàitān) replica and the Nanjing Road (南京路, Nánjīng Lù) frontage by the day, so on a slow morning you may share the pavement with a lighting rig and a reflector the size of a door. The general ticket runs around 80 yuan at the gate, and the park keeps daytime hours — roughly 8:30 to 16:30, with the last entry earlier — but it closes without much warning when a production takes the whole lot, which is the one thing worth confirming before you commit the trip out.

The scale is the surprise. This is not a diorama you photograph and leave; the main axis is a full-length street of three- and four-storey buildings, and the tram tracks run its spine so a camera can dolly the length of it. What stands are façades with shallow rooms behind them, close enough to fool a lens and, from the middle of the road, close enough to fool you. Look up and the cornices are plaster over timber. Look through a shop window and the goods are dressing — enamel signs, apothecary drawers, a rack of cheongsam that no one will sell you.

What the real city stopped keeping

Central Shanghai still has shikumen (石库门, shíkùmén) — the stone-gate lane houses that once packed families into brick terraces behind a single carved lintel. But most surviving blocks have been renovated into the version tourists want: Xintiandi (新天地, Xīntiāndì) turned its lanes into wine bars and design shops, and Tianzifang (田子坊, Tiánzǐfāng) into a warren of studios and tea counters. The laundry poles are gone, the coal stoves are gone, the shared kitchen at the end of the lane is a boutique. Chedun rebuilt the un-renovated version instead: narrow longtang (弄堂, lòngtáng) alleys, wooden shutters bleached grey, enamel wash basins, a barber's striped pole, a pawnshop counter set high enough that you had to reach up to hand over your coat.

It is a reconstruction, and it is also, oddly, the closer likeness. The set was built from the same period drawings the historians use, then left alone. No one has upgraded it because no one lives in it, and that absence of improvement is exactly what the real lanes lost when they became desirable.

A set ages differently from a city. Nothing here is being lived in, so nothing here is being improved away.

The set-pieces worth slowing for

Beyond the Nanjing Road strip, the park scatters landmarks that the real Shanghai either demolished or fenced off. There is a stone church modelled on the European Gothic that once studded the concessions, its rose window glazed for the camera; a curved stone bridge over a green canal; and a full replica of the old racecourse grandstand and clock, the horse-racing world the city legislated out of existence in the 1950s. A European-style residence stands in for the merchant villas of the old French Concession, complete with a wrought-iron gate and a lawn kept trimmed for wedding shoots.

The tram is the one thing you should ride once rather than only photograph. It was built to give a single sightline — the long, uninterrupted view down the boulevard that the street was designed around — and you only read that geometry from a seat, watching the façades slide past in the order a director would want them. Costumes are for rent near the entrance for a small fee if you want the 1930s portrait; most visitors skip it, and the emptier frames, the ones with no one dressed for the part, are the better ones.

Going as a visitor, not a crew

Getting there is the part people underestimate. The park is not on a metro doorstep: the honest route by public transport is Metro Line 1 to its southern terminus at Xinzhuang (莘庄, Xīnzhuāng), then a suburban bus toward Chedun, which turns the trip into the better part of two hours each way. Most independent visitors call a car — a DiDi from the city centre is the reliable option, and it is worth telling the driver the destination is Shanghai Film Park in Chedun, not any of the several film-related addresses in Songjiang that share half a name. Aim to arrive near opening while the light is low and the lot is empty, because the tour groups build through late morning and a period street reads very differently with forty phones in it.

Walk the Bund end first, ride the tram once for the sightline, then let yourself get lost in the back lanes where nothing is signposted. Bring cash or a Chinese mobile-payment app for the ticket and the noodle stalls near the gate; there is no restaurant scene to speak of inside. The one mistake to avoid is making Chedun a spontaneous afternoon add-on — check the day's opening the night before, because arriving to a locked lot after an hour in a car is the trip's only real risk, and it is entirely avoidable.

车墩不假装自己是一座城市，这正是它把老上海留得更完整的原因。