Taxi drivers, ride-hailing drivers, and chauffeurs transport clients to and from their destinations, whether they are in a rush or wish to arrive in style. They must be intimately familiar with their surroundings, including popular destinations, emergency services, and the quickest routes to avoid rush hour traffic. Drivers adhere to local restrictions and monitor weather and road conditions that affect driving. Taxi drivers either pick up clients from taxi lines at airports and hotels, or they respond to dispatcher requests to pick up a customer. They charge depending on a metre that runs while the vehicle is in motion, and they take rests between passengers. Ride-hailing drivers work their own hours and use their personal vehicles to pick up clients who use a smartphone app to request service. Chauffeurs operate limos or private automobiles to transport guests on prearranged journeys. They may work for a single person, a company, or the government, or they may operate a large hotel van. Paratransit drivers drive cars outfitted with wheelchair lifts and other equipment to accommodate elderly or disabled passengers. Part-time driving is popular, even though many taxi drivers and chauffeurs work full-time. Late nights, early mornings, weekends, and holidays are all possible. Drivers are stressed by high traffic and must load heavy luggage. Drivers must have a conventional driver's licence, but no formal schooling is required; on-the-job training may be provided. Some jobs may necessitate a taxi or limousine licence.