A TTC subway operator looks out the window of the car as passengers board at the Yonge and Bloor Station. (Kevin Frayer/Canadian Press)

Toronto Transit Commission vice-chair Joe Mihevc is inviting commuters to complete what he calls a passenger audit of the system's subway stations.

Those who want to take part should to go to the station they visit most often and complete a questionnaire -- found at ttcpassengeraudit.com -- that assesses the state of the station.

The questionnaire asks riders to report, for example, whether they think a station is clean enough, whether they feel safe in the station and if there is adequate signage.

We want you to do a passenger audit of your city's public transit stations. From Vancouver's SkyTrain to the Montreal Metro, tell us what improvements need to be made. Whether you think your regular station is the grimiest in Canada or is among the country's best run, we want to hear about it.

Here's how you can help:

• Take photos of the public transit station you visit most often. Is it clean or dirty? Are the signs confusing? Show us. Upload your photos to http://www.cbc.ca/news/yourvoice/photogalleries/yourphotosall/ and to our Flickr group: http://www.flickr.com/groups/1005111@N25/
• Shoot some video clips of your station and submit them to http://www.cbc.ca/news/yourvoice/yourvideo/upload.html. Keep videos to a maximum of two minutes, please.
• Write a brief description -- 100 words or less -- of your regular station. Tell us what it's like to use it. How safe do you feel? Are there enough benches for people to sit on? Be sure to include the location and the city. Email your submissions to yournews@cbc.ca.