Six Dunedin students were taken to Dunedin Hospital after their car struck a parked car, mounted the footpath, turned 180 degrees and hit a power pole in the street on Saturday afternoon.
One man was in the car's boot at the time of the crash and was taken to hospital with serious injuries.
But the accident was only the latest in a long line of incidents and near-misses on the quiet, hilly road.
Resident Margaret Gibbs has started a petition to have Dunedin City Council address the issue of speeding motorists.
''A couple of [speed limit] signs could be a good starting point,'' she said.
''When I took the petition to the students across the road, they asked a very interesting question and said, `Is this a 50kmh limit?'. That surprised me, but do people know it's a 50kmh limit here?''
She had held concerns for many years, but the weekend's accident drove her to action.
''Something like that focuses your mind,'' she said.
''The hill is just up the road and the playcentre is just down the hill. But it's also a very popular walkers' hill. It's just sheer luck, sheer luck, that no-one was on the street at the time [of the accident].''
So far, about 25 residents had signed the petition, but she was going to pamphlet-drop at more houses to get their occupants' support.
Anne Scott, who also lives in Signal Hill Rd, said the acceleration of car engines was a fixture in the otherwise quiet street.
''It's hard to know how fast they drive, but it's definitely over 50kmh,'' she said.
''Most people would consider this as a bit of a racing strip. That's pretty much the attitude we would like to curb.''
She was ''not surprised at all'' that the weekend's crash occurred and felt it was only a matter of time until another followed.
Mrs Gibbs said measures were taken to address speed at the top of the hill several years ago and they had ''made a dramatic change'', according to residents in that part of the street.
Now, she hoped similar measures could address speed on the lower part of the hill.
Once she had canvassed more residents' for their opinions the petition would be taken to the council, she said.
Senior Sergeant Phil McDouall said inquiries were continuing into the weekend's crash. No-one had been charged at present.
Speed was a factor and the serious crash unit attended the accident, police said.
• Those interested in signing the petition can contact Margaret Gibbs via email on m.gibbs@slingshot.co.nz.
