Mark Levison, an attorney for a consortium of Lambert taxi firms, said in a letter last week to city officials that the consortium also takes on many other burdens that wouldn’t be imposed on Uber and Lyft.

Among them, he said, is maintaining a sufficient number of cabs on duty during low-flight periods such as late night and early morning and accepting trip vouchers issued by airlines.

Hamm-Niebruegge noted that participating taxis can line up and get guaranteed pickups at reserved spots outside Lambert’s two terminals.

In contrast, she said, ride-hailing drivers, whose trips typically are arranged through smartphones, will use other areas open to vehicles operated by the general public.

Reed said he plans to consider through the Board of Aldermen ways to make Lambert taxi costs more competitive with those of Uber and Lyft. Hamm-Niebruegge said the airport also is willing to discuss possible changes, such as lowering insurance requirements.

Hamm-Niebruegge said she hopes that the ride-hailing companies will begin operating under the new fees by the end of the month.