Boris Johnson has warned there is “much more to be done” to improve the diversity of the engineering industry.
The mayor of London was speaking ahead of a Crossrail event to mark National Women in Engineering Day.
Johnson said: “As the upgrade and modernisation of our bustling transport network continues apace, London is on course to deliver Europe’s most ambitious infrastructure project.
“This is a fantastic time to pursue a career in engineering and our economy owes a lot to the hugely important contribution of female engineers at TfL and Crossrail.
“It is only right that we should recognise and applaud their remarkable work, while acknowledging that there is much more to be done to encourage more women into what historically has been a male-dominated field.”