Urban distribution of parcels and goods usually requires vehicles to temporarily stop at roadside to allow for the driver to perform the last leg of the delivery by foot. The stops take place in designated areas, called loading/unloading (L/U) areas, composed of one or more parking spots. In this paper the introduction of a booking system for the management of the L/U areas in a city center is studied as a way to eliminate, or at least substantially reduce, double parking. A booking management system and the related routing problem are presented. In this system, distributors book in sequence according to their preferences and routing constraints, but subject to the bookings that have already been placed. The solution provided by the booking system is discussed and compared with the current use of the L/U areas, where the distributors do not consider the availability of a parking spot and resort to double parking if none is available.

在城市中分发包裹和货物通常需要车辆暂时停在路边，以使驾驶员能够步行完成最后一站。停靠站位于指定的区域，称为装载/卸载（L / U）区域，由一个或多个停车位组成。在本文中，研究了一种用于管理市中心L / U区域的预订系统，以此作为消除或至少实质上减少双重停车的方法。介绍了预订管理系统和相关的路由问题。在此系统中，分销商根据他们的喜好和路线限制按顺序进行预订，但要遵守已经下达的预订。讨论了预订系统提供的解决方案，并将其与L / U区域的当前使用进行了比较，