The high cost of implementing changes to infrastructure always raises questions about priorities. Should investments in infrastructure be made to address high-impact, low- probability events (such as human error-caused accidents) or should investments be focused low-impact, high-probability events (such as the need for ongoing cleaning and maintenance of train stations and installing air conditioning)? Make an argument in favor of accelerating the deployment of PTC giving three strong reasons supporting this decision. Now take the other side and present a strong argument against PTC deployment and offering an alternative solutions.

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