## 1 Introduction
However, it is inevitable that in the vicinity of the BLIP setup signal (i.e., the VMS setup area), the mandatory lane-changing behavior of vehicles caused by intermittent opening/closing of lanes will cause serious right-of-way conflict with traffic in adjacent lanes. Implementing the BLIP strategy in high-traffic environments can actually have negative effects on road traffic. In addition, the BLIP strategy does not involve the calculation of the length of reserved clearance lanes. The lane clearance distance in front of the bus is relatively fixed (usually set to a one block), which cannot be adaptively changed according to the current traffic conditions of the road section. This may lead to insufficient utilization of lane resources or the failure of bus priority. In recent years, numerous scholars have proposed many IBL conceptual variants [11; 12; 13; 14; 15]. [PERSON] and [PERSON] [11] developed a similar strategy to share bottleneck capacity among buses and cars by inserting cars into a shared lane without delaying buses. [PERSON] et al. [12] developed a dynamic bus lane with moving block in a connected-vehicle environment, where the length of the moving block can be adjusted with the bus speed in real time. Inspired by the principle of time-division multiplexing in communications, the authors of this paper first proposed a novel intermittent bus lane with time-division multiplexing (BLTDM) in 2011 [16]. By giving vehicles different priorities, the time and space domains of multiplexing links are controlled for lane sharing and bus priority. Subsequently, the authors further improved their methodology system, and conducted research and demonstration on the system architecture, control strategy and operation evaluation of BLTDM [17; 18; 19; 20]. These studies suggest that the BLTDM strategy compensates for the limitations of existing IBL strategies to a certain extent, which provides new insights into the construction and management of bus lanes. As an innovative and promising bus priority strategy, the usefulness and feasibility of IBLs have been proved by many theoretical studies [21; 22; 23]. However, due to this mode setting rely on the hardware technology foundation of Cooperative Vehicle InfrastructureSystem (CVIS), there are few relevant practical applications (only experimental applications have been carried out in Europe and Australia) [24; 25; 26; 27]. Among them, [PERSON] [25] conducted a field survey of the IBL system in Lisbon, and the results showed that during the lane operation, the bus speed on the line increased by an average of about 20%. However, the operation effect of the system fluctuates greatly due to the influence of traffic conditions, and the system will fail when the road is seriously congested. [PERSON] and [PERSON] [26] conducted a field survey of Melbourne's IBL operations. The survey found that the system had limited operational benefits compared to the Lisbon trial, which could be attributed to its highly congested and complex traffic environment. [PERSON] and [PERSON] [27] conducted a case study and evaluation of the BLIP test road section in Lyon. The results show that only enabling the BLIP strategy does not lead to bus travel time savings compared to the classic TSP strategy because setting the BLIP signal creates additional delays for upstream traffic. Therefore, this strategy is not suitable for deployment on short road sections. Only in the implementation environment of longer road sections and more signalized intersections can the operational benefits of the strategy gradually become apparent. Thus far, research associated with the IBL strategy has focused on system components, traffic operation, and intersection signal setting, but has seldom paid attention to the setting method of the dynamic bus lanes at intersections. This may be one of the main reasons why IBL does not play the expected benefits in the above practical applications. Signalized intersections are bottlenecks of urban traffic, which often represent a major source of bus delays in urban environments.