Dedicated Lanes (DLs) have been proposed as a potential scenario for the deployment of Automated and/or Connected Vehicles (C/AVs) on the road network. However, evidence-based knowledge regarding the impacts of different design configurations, utilization policies, and the design of their access/egress on traffic safety and efficiency is limited. In order to develop an adequate design for DLs, first, a conceptual framework describing the relations and interrelations between these factors and traffic safety and efficiency is needed. Therefore, the main aim of this paper is to develop a conceptual framework accounting for the factors that could affect the safety and efficiency of DLs. This conceptual framework is underpinned based on relevant literature on how the deployment of C/AVs, driver behaviour, and DL design and operation affect traffic safety and efficiency. Based on the conceptual framework, the knowledge gaps on DL design for C/AVs were identified and a research agenda, including prioritization of the research needs, is proposed.

Following the developed conceptual framework, the necessary building blocks for investigating the impacts of different design configurations, utilization policies, and the design of their access/egress on traffic safety and efficiency are: (1) to specify the types of vehicles with certain capabilities allowed to drive on DLs; (2) to incorporate existing algorithms of C/AVs, which reflect more realistically their behaviour, in both driving simulator experiments and microscopic simulation; (3) to translate the empirical data regarding human behavioural adaptation collected from field tests and driving simulator studies to mathematical models and implement them in traffic flow simulation platform. It is also recommended to develop automated lane change algorithms, taking into account connectivity between C/AVs which can be also implemented in driving simulators and traffic flow simulation platforms.

Finally, it is recommended that future research investigate the combined effects of traffic safety and efficiency in designing DLs while considering driver behaviour adaptation and control transitions between manual and automated operation.

已经提出专用车道（DL）作为在道路网络上部署自动和/或联网车辆（C / AV）的潜在方案。但是，关于不同设计配置，使用策略及其访问/出口设计对交通安全和效率的影响的循证知识有限。为了开发用于DL的适当设计，首先，需要一个描述这些因素与交通安全和效率之间的关系和相互关系的概念框架。因此，本文的主要目的是建立一个概念框架，说明可能影响DL安全性和效率的因素。该概念框架基于有关C / AV的部署，驾驶员行为，DL的设计和运行会影响交通安全和效率。基于概念框架，确定了C / AV的DL设计方面的知识差距，并提出了包括优先研究需求在​​内的研究议程。

根据已开发的概念框架，研究不同设计配置，使用政策及其出入口设计对交通安全和效率的影响的必要组成部分是：（1）指定允许某些能力的车辆类型在DL上开车；（2）在驾驶模拟器实验和微观模拟中纳入现有的C / AV算法，这些算法可以更真实地反映其行为；（3）将从现场测试和驾驶模拟器研究中收集的关于人类行为适应性的经验数据转换为数学模型，并将其在交通流模拟平台中实现。还建议开发自动换道算法，

最后，建议未来的研究研究交通安全和效率在设计DL时的综合影响，同时考虑驾驶员行为的适应以及手动和自动操作之间的控制转换。