Urine detection sensor for public transportation elevators


Massachusetts Bay Transportation Authority


Data Collection, Health and Human Services, Intrastructure Assessment, IoT, Mobility, Public Safety


Budget Exists

Procurement Method:

View doc

Application Period:

October 16, 2019


December 1, 2019 3:59 PM

Q&A Period:

October 16, 2019 - November 12, 2019


The Massachusetts Bay Transportation Authority is seeking a inexpensive, accurate, and automated solution to detect urine for our public transportation riders who use elevators.


Elevators provide an essential service for many MBTA riders. Whether a person uses a wheelchair to get around, pushes a stroller, walks with a cane, or is simply tired of taking the stairs, elevators make our transportation system more accessible to people in the region around Boston. 
Unfortunately, at times our elevators are used as public restrooms, resulting in an unpleasant experience for everyone, especially people who are unable to access our public transportation system any other way.  
This results in: 
  • Extremely poor customer experience 
  • More frequent elevator outages due to premature degradation of elevator machinery 
  • Increased elevator maintenance costs 

Requirements & Outcome

MBTA seeks a solution that would have the following outcomes: 
  • Accurately detect the presence of urine within an elevator cab. 
  • Automatically notify (email is sufficient) someone of the presence of urine OR be able to connect to an existing elevator monitoring system that can transmit data detected by the urine detection solution. 
  • Check for the presence of urine at a regular interval. 
  • Cost effective solution to deploy across 10 to 200 elevators.