Edson Kuhn was injured alongside his son in the incident on the evening of July 2 in Shooters Hill Road.
Both were taken to hospital by London Ambulance Service after the crash on the zebra crossing near Ark Greenwich Free School.
Metropolitan Police also attended the scene, but no arrests have been made.
Mr Kuhn told the News Shopper that he is still recovering from a broken shoulder and that his son has “severe shock” after being “thrown four metres” in the crash.
“The aftermath was the most harrowing experience of my life,” he said.
“To see my child lying motionless on the road is a nightmare no parent should ever face. He is now terrified of even walking down the street.”
The father added that he had written to Greenwich Council in the aftermath of the crash asking for safety improvements to be made to the road but claimed the response he received “lacked urgency”.
Mr Kuhn raised concerns that the speed limit switches from 20mph to 30mph on the approach to the zebra crossing, which he described as a “death trap”, increasing the chance of an accident.
The crash took place on a zebra crossing near Ark Greenwich Free School (Image: Google)
He has asked the local authority to reduce the speed limit and upgrade the zebra crossing to a lights-controlled pelican crossing, as well as to install speed bumps and signs warning drivers that a school is nearby.
“The council has been warned, but nothing has been done,” Mr. Kuhn explained.
“Are they waiting for a child to be killed before they act? This isn’t just an accident – it’s the result of negligence.”
A council spokesperson told the News Shopper that their thoughts were with Mr Kuhn and his son “following this distressing incident”.
They said: “We roll out road safety improvements in areas where they’re most urgently needed, based on data and evidence which shows where the highest number of collisions and injuries occur.
“This data is regularly reviewed to make sure we are responding to any increased risks.
“In addition, we carry out three-monthly highways inspections to check for any defects in signs and road markings, especially at the zebra crossings.
“The council is also proposing to introduce a boroughwide 20mph speed limit on all residential roads and suitable non-residential roads, which is a big part of making our roads safer for everyone.”