# A Framework of Vehicle Usage Optimization for Tour Purposes
## 2 Related Research
Tourism is a government priority because it is potentially the largest contributor to the gross domestic product, so the government's management of the tourism sector needs improvement [7]. Travel agencies handle tour and traveler registration, booking, payment, trip packaging, cancellation, etc. This is a common issue in many processing and recording errors. Thus, in this paper, the authors want to solve this problem by using the waterfall approach to build the information system. They utilized UML for design, employed PHP as a programming language, and employed SQL to connect servers, establish databases, and store data. In Ref. [8], the authors proposed that the internet has achieved tremendous time and financial savings through \"e-commerce\", which includes travel services, among which ticket bookings and hotel reservations. The Tours and Travels System is a web-based application project that allows users to manage multiple booking types from a single application. We have found some web-based software among GitHub projects, Facebook pages, and the Play Store [9; 10; 11]. The web-based software used in Ref. [9] provides tour packages, booking systems, blogs, and descriptions of many tourist places in Bangladesh and abroad. It also provides a special service for visas and passports. Furthermore, the web portal used in [10] offers information about ticket prices, available transportation, and an online booking option for all bus travelers. This facility has been introduced in Bangladesh. Online ticket booking is only one part of the web portal's service; the front-office e-ticketing operations and the back-office accounting systems of transportation companies have also been automated. The web-based software in Ref. [11] provides bus, train, and launch tickets. Users are able to discover hundreds of operators and routes in just a few minutes, compare prices, and enjoy the best deals and safeguards. In Refs. [12; 13], the developer proposed a Facebook-page-based project. In Ref. [12], according to the page's admin, users had different reasons for traveling, including adventure, leisure, budget, discoveries, and moving on. The page claims that \"whether one needs inspiration, information, planning advice, or just plain escapism, 'Travelers of Bangladesh' is there to help\". The group's main objectives are as follows: low-cost travel and profitable tours [13]. Their goal is to empower people with the courage and intelligence to travel independently, while competing with only a few groups in the market. They claim that any individual can experience the joys of travel (on the roof of a bus, on the deck of a ship, on the roof of a chariot, or sitting on the ground). Many people occasionally experience life as boring; they attempt to break this monotony by providing users with a tour, telling them something, and keeping them amused (within limits), all the while saving them money by providing inexpensive tours. In Ref. [14], a mobile application is proposed: Bus Ticket BD, which is a free Android application. In this mobile application [14], the authors have provided several bus transport services. When someone wants to go on vacation, this one-of-a-kind application includes some of the most important features: finding terminals, online travel agencies, schedules, preferred seats, and arrival and departure locations, which can normally take time and effort. They can even contact them using their cell numbers. Ref. [15] described a new framework for preserving user privacy in location-based services when conducting group nearest neighbor (GNN) queries. GNN queries involve finding a meeting place that minimizes the aggregate distance from a group of users. The proposed framework uses a decentralized architecture and has users provide their locations as regions instead of exact points to a location service provider (LSP) to protect their privacy. The LSP produces a set of candidate answers, which includes the genuine GNN.