自适应巡航控制系统对入口匝道附近混合交通流的影响
Effect of adaptive cruise control systems on mixed traffic flow near an on-ramp
摘要：
采用车辆跟驰仿真方法，分析了装有自适应巡航控制（ACC）的车辆与人工驾驶车辆的混合交通流。不像模拟，显示抑制堵塞，由于增加字符串的稳定性，从一个入口匝道到高速公路上的模拟合并到目前为止还没有表现出实质性的积极影响ACC.In本文提出合作合并，以增加吞吐量和增加行驶的距离在一个固定的时间（减少旅行时间）。在这样的系统中，ACC车辆不仅感测在同一车道中的前车，而且感测在相反车道中的紧接在前的车辆。在到达合并区域之前，ACC车辆调整其速度以确保获得用于合并的安全间隙。如果入口匝道的需求是温和的，部分实施的合作合并，只有主线ACC车辆反应的入口匝道车辆是有效的。显着改善吞吐量（18%），并增加了3公里的行驶距离在500秒内被发现为50%ACC混合流相对于所有手动车辆的流量。对于大的需求，需要全面实施，以减少拥堵。
英文摘要：
Mixed traffic flow consisting of vehicles equipped with adaptive cruise control (ACC) and manually driven vehicles is analyzed using car-following simulations. Unlike simulations that show suppression of jams due to increased string stability, simulations of merging from an on-ramp onto a freeway have not thus far demonstrated a substantial positive impact of ACC. In this paper cooperative merging is proposed to increase throughput and increase distance traveled in a fixed time (reduce travel times). In such a system an ACC vehicle senses not only the preceding vehicle in the same lane but also the vehicle immediately in front in the opposite lane. Prior to reaching the merge region, the ACC vehicle adjusts its velocity to ensure that a safe gap for merging is obtained. If on-ramp demand is moderate, partial implementation of cooperative merging where only main line ACC vehicles react to an on-ramp vehicle is effective. Significant improvement in throughput (18%) and increases up to 3 km in distance traveled in 500 s are found for 50% ACC mixed flow relative to the flow of all manual vehicles. For large demand, full implementation is required to reduce congestion.
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