I also have no idea what better alternative there is when a contract negotiation fails. Is the system supposed to stop altogether until a new contract is agreed upon? Are the workers expected to go without pay? The fact is that the union's demands have not been unreasonable -- they ask to keep benefits, to have pay increases that basically track the cost of living in NYC, and occasional to expand low-cost benefits (e.g. allowing all employees to ride LIRR and MNR for free, rather than just employees who live outside NYC).