The lower part of Marsa had been rendered "more closed than Mdina, former MP Joseph Brincat, a former minister who lives in Marsa, said in a judicial protest.
He said the works on December 13 Road had inconvenienced residents who, for example, had to walk more to reach a bus stop as that near the Holy Trinity Church had become inaccessible.
Access to emergency vehicles was also limited and plans to include a flyover would further increase traffic, he claimed.
He said that the the only people the project was benefiting was the contractors.
He called on Transport Malta to reconsider its plans.