Installing bollards

Question 1

For example, on the 7th..

Answer 1

For example, on the 7th of April 2017, a hijacked truck was deliberately driven into crowds along Queen Street before crashing into a department store in central Stockholm (BK). This attack killed 5 people and injured 14.

Question 2

After a hired..

Answer 2

After a hired van was driven into the footway of London Bridge on the 3rd of June 2017, bollards were installed along the whole length of the bridge beside the footpath, and there has since been no vehicle-ramming, or even any attempts of it on London Bridge.

Question 3

Bollards are effective..

Answer 3

Bollards are effective, but it costs a lot of money to install them, with certain types of just the smaller and simpler ones costing up to £2000.