A comprehensive and satisfying route- guidance system is considered valuable for citizens and tourists worldwide. An effective route-guidance system is essential because of the sophisticated city formation and transportation system in India. For better utilization of route-guidance systems. It needs to be easy to use and informational but to be more sensible to give optimal route options in terms of low cost and low time in various situations (Such as climate conditions, traffic jam, road structure). This paper aims to comprehend the research trend in the route guidance system and easily observe the various technique of route guidance. Different impressive findings have come out of this study, supporting current and future researchers to evaluate and set their research roadmap. This paper also explains the existing approaches for route guidance systems in simple language, which will be fruitful for researchers. Furthermore, this paper also envisions the future of RGs, which may open up new research directions in this domain.

全面而令人满意的路线引导系统被认为对全世界的公民和游客都是有价值的。由于印度复杂的城市形成和运输系统，有效的路线引导系统至关重要。为了更好地利用路线引导系统。它需要易于使用和提供信息，但在各种情况下（例如气候条件，交通拥堵，道路结构等），以低成本和短时间的方式给出最佳路线选择更为明智。本文旨在了解路线制导系统的研究趋势，并容易地观察各种路线制导技术。这项研究得出了不同的令人印象深刻的发现，支持当前和未来的研究人员评估和设定他们的研究路线图。本文还以简单的语言解释了现有的路线导航系统方法，这对研究人员将是有益的。此外，本文还展望了RG的未来，这可能会为该领域开辟新的研究方向。