Commuters frequenting the Downtown Line would have noticed the presence of the Passenger Load Information System on the timing screens mounted around the stations. The system provides information on how packed a train is at different carriages. For instance, green indicates that the carriage is not crowded with ample seating space, yellow means only standing space is available, and probability of getting seats is low, while red refers to limited standing space. Powered by load sensors installed in the train, this system cost SGD $1.5 million and took around eight months to develop! It will be finetuned before further decisions to launch on other MRT lines.