1. Gordon, A., The Trains are Slower Because They Slowed the Trains Down, 2018.
2. Plitt, A., Scott, L. The New York City Subway, Explained a Comprehensive Guide to the Subway’s History, Unspoken Rules of Conduct, and More Insider Intel, 2019.
3. Berger, P. Budget Funding Will Cover $25 Billion in MTA Upgrades, Chairman Says
New York’s Spending Plan Would Raise Revenue from Real-estate and Internet-sales Taxes, and a Congestion Fee, 2019.
4. Center for Construction Research and Training. Deaths and Injuries Involving Elevators and Escalators- a Report of the Center to Protect Workers’ Rights, 2016.
5. NBC New York. Switch Malfunction Just to Start of Problems for MTA on Monday’s Evening Commute, 2019.
6. Martinez, J. Newest Subway Cars Breaking Down More Often Than Some Old Ones, 2019.