An intelligent transportation system (ITS) improves traffic safety and efficiency by enabling vehicles to generate and broadcast messages. However, it is not easy to trust the received message's credibility in an untrusted environment or untrusted network. Additionally, there is no reward mechanism for the honest message generator. Hence, to improve safety and network efficiency and encourage more vehicles to participate in network improvisation, we proposed a novel incentive mechanism for vehicles called SmartCoin based on a consortium blockchain. The proposed scheme aims to achieve social welfare, improved transportation, less traffic congestion, reduced road accidents, and a transportation network free from fraud messages. In the proposed scheme, vehicles give the rating to the message source vehicle based on the validity of the message. Some SmartCoins are credited into the vehicle's account at the blockchain according to the rating of the message. The SmartCoins could be redeemed either at the fuel station, electric charge station for electric vehicles and vehicle service station. Blockchain technology provides decentralization, immutability, transparency to the ITS. The secure storage for the SmartCoin, traffic messages and user information is achieved using blockchain. The secure hash algorithm (SHA256) and elliptic curve digital signature algorithm (ECDSA-192 bit) are used to provide secure communication, message integrity and authentication for vehicles and information. The result analysis reveals that the proposed scheme is effective, comprehensive, and feasible in collecting and storing trust values in the ITS network. The performance evaluation showed enhancement in performance as 90% less consensus delay and 70-80% less storage and communication cost compared to state-of-the-art schemes.

智能交通系统 (ITS) 通过使车辆能够生成和广播消息来提高交通安全和效率。然而，在不可信的环境或不可信的网络中，要相信接收到的消息的可信度并不容易。此外，诚实消息生成器没有奖励机制。因此，为了提高安全性和网络效率并鼓励更多车辆参与网络即兴发挥，我们提出了一种基于联盟区块链的新型车辆激励机制，称为 SmartCoin。拟议的计划旨在实现社会福利、改善交通、减少交通拥堵、减少道路事故以及建立一个没有欺诈信息的交通网络。在所提出的方案中，车辆根据消息的有效性对消息源车辆进行评级。根据消息的评级，一些 SmartCoin 会在区块链上记入车辆的账户。SmartCoins可以在加油站、电动汽车充电站和汽车服务站兑换。区块链技术为 ITS 提供了去中心化、不变性和透明度。SmartCoin、交通信息和用户信息的安全存储是通过区块链实现的。安全哈希算法（SHA256）和椭圆曲线数字签名算法（ECDSA-192位）用于为车辆和信息提供安全通信、消息完整性和认证。结果分析表明，该方案在ITS网络中收集和存储信任值方面是有效、全面和可行的。