The advertisements, to appear on six billboards in train stations from Monday, map the areas in the Sydney CBD where pedestrians have been injured or killed in collisions.

The ads highlights danger around train stations. Town Hall ranks as the most dangerous for pedestrians. About 140 accidents have occurred in a 300-metre radius around the station in the past five years.

But a four-way intersection where George and Pitt streets meet in Railway Square stands out as one of Sydney's most dangerous spots for accidents involving pedestrians.

Council's road safety officer, Peter Wright, said the city was encouraging drivers to maintain a low and even speed throughout the city.

Men are generally involved in more accidents than women, except among those in their late twenties where women are only slightly more likely to be involved.

But despite a string of well-publicised fatal collisions in the CBD last year, new data shows that pedestrian casualties are plunging.

Collisions involving pedestrians have fallen about 12 per cent in the past five years, according to the Centre for Road Safety figures.

Marg Prendergast, the centre's manager, said a number of initiatives were being trialled in the CBD to improve safety including count-down timers for pedestrian lights at traffic crossings.

The campaign reveals pedestrian blackspots around Town Hall station.

The NSW police have introduced motorcycle patrol officers in central Sydney to crack down on pedestrian misbehaviour, including frequent blitzes on jaywalking.

On the police's estimate the officers' presence has brought about a 30 per cent reduction in pedestrian accidents.

131 people were killed or injured within a 400 metre radius Town Hall142 people were killed or injured within a 300 metre radiusWynyard102 people were killed or injured within a 300 metre radius

About half of all pedestrians caught breaking the law were using a mobile phone, police say.

The government also implemented a 40km/h speed limit in Sydney's CBD in September last year.

"A vehicle that hits a pedestrian at 50km/h is twice as likely to cause a fatality as the same vehicle travelling at 40km/h," Ms Prendergast said.

The campaign reveals pedestrian blackspots around Wynyard station.

Eleven pedestrians have been killed in fatal collisions in the CBD in the decade to 2014. Five of these accidents involved buses, despite the fact they make up fewer than 10 per cent of vehicles in the city centre,

Pedestrian accidents have been falling across the state more broadly.

About 1900 pedestrian injuries were recorded state-wide in 2009, a figure which has fallen to about 1650 in the 2013 figures.