道路系统基础 / Road System Basics

道路是城市的血管，连接着城市各个功能区，决定着城市的运行效率。城市天际线2提供了丰富的道路类型选项，从简单的碎石路到多车道高速公路，每种道路都有特定的用途和铺设成本。正确选择和使用道路类型是解决交通问题的第一步。

Roads are the blood vessels of the city, connecting all functional areas and determining operational efficiency. Cities: Skylines 2 offers a rich variety of road types, from simple gravel roads to multi-lane highways, each with specific uses and construction costs. Correctly selecting and using road types is the first step in solving traffic problems.

道路类型 / Road Types

碎石路（Gravel Road）是最基础的道路类型，建设成本低但容量小、车速慢，适合低密度区域的支路。双车道道路（Two-Lane Road）是标准的社区道路，适合住宅区和轻商业区。四车道道路（Four-Lane Road）是城市主干道，适合中高密度区域和中等流量路段。六车道道路（Six-Lane Road）是城市快速路，适合高流量路段和城市主干道。高速公路（Highway）是最高容量道路，连接城市与外部区域以及城市内的远距离快速通道。

Gravel Road is the most basic road type with low construction cost but low capacity and slow speed, suitable for low-density area branch roads. Two-Lane Road is the standard community road, suitable for residential and light commercial areas. Four-Lane Road is the urban arterial road, suitable for medium-to-high density areas and moderate traffic sections. Six-Lane Road is the urban expressway, suitable for high-traffic sections and major urban arteries. Highway is the highest capacity road, connecting the city with external areas and serving as long-distance fast passages within the city.

道路升级 / Road Upgrades

随着城市发展，低等级道路需要升级为高等级道路以应对增加的交通流量。道路升级可以在原有线位上直接进行，无需拆除周边建筑。但升级期间会造成临时交通中断。升级的时机选择很重要：过早升级浪费预算，过晚升级导致交通瘫痪。观察道路的颜色提示可以判断拥堵程度，深红色表示严重拥堵，需要优先处理。

As the city develops, lower-grade roads need upgrading to higher-grade roads to handle increased traffic flow. Road upgrades can be performed directly on existing alignments without demolishing surrounding buildings. However, temporary traffic disruption occurs during upgrades. Timing is important: premature upgrades waste budget, while delayed upgrades cause traffic paralysis. Observing road color indicators helps determine congestion levels, with dark red indicating severe congestion requiring priority treatment.

道路层级体系 / Road Hierarchy

建立合理的道路层级体系是城市规划的基础。典型的道路层级从高到低分为：高速公路、主干道、次干道和支路。高速公路负责城市间和远距离快速交通，主干道连接城市各主要区域，次干道在主干道和支路之间起分配作用，支路直接服务到户。一个健康的道路网络应该呈金字塔结构：少量高等级道路承担大部分交通流量，大量低等级道路服务本地交通。

Establishing a reasonable road hierarchy is the foundation of urban planning. The typical hierarchy from high to low is: Highway, Arterial Road, Collector Road, and Local Road. Highways handle inter-city and long-distance fast traffic, arterial roads connect major city districts, collector roads distribute traffic between arterials and local roads, and local roads directly serve individual buildings. A healthy road network should have a pyramid structure: a small number of high-grade roads carry most traffic, while many low-grade roads serve local traffic.

道路连接规则 / Road Connection Rules

不同类型道路之间的连接需要合理设计。高速公路不应直接连接到支路，否则会造成交通瓶颈。高速公路通过出入口匝道连接到主干道，主干道再连接到次干道，最后分布到支路。避免过多十字路口布局在主干道上，这会严重降低通行效率。道路间距也要合理，过密的交叉口会降低平均行驶速度。

Connections between different road types need reasonable design. Highways should not connect directly to local roads, as this creates bottlenecks. Highways connect to arterial roads via entrance and exit ramps, arterials connect to collector roads, which then distribute to local roads. Avoid placing too many intersections on arterial roads, as this significantly reduces traffic efficiency. Road spacing should also be reasonable; overly dense intersections reduce average travel speed.

交叉口与立交桥 / Intersections & Interchanges

交叉口类型 / Intersection Types

游戏提供多种交叉口设计。标准十字路口是最简单的形式，适合低流量路段。环岛（Roundabout）适合中等流量交叉口，车辆沿环形行驶分流。信号灯交叉口适应较高流量。立体交叉口将不同方向的车流在不同高度的道路分流。选择交叉口类型时需要考虑各方向的交通流量和可用的土地空间。

The game offers various intersection designs. Standard intersections are the simplest form, suitable for low-traffic sections. Roundabouts suit medium-traffic intersections, with vehicles circulating around a central island. Signalized intersections accommodate higher traffic volumes. Grade-separated interchanges divert traffic flows in different directions at different road heights. When choosing intersection types, consider traffic volumes from each direction and available land space.

立交桥设计 / Interchange Design

立交桥通过立体交叉的方式让车辆在不同方向自由转换而不相互冲突。常见的高速公路立交桥类型包括苜蓿叶型（Cloverleaf）、喇叭型（Trumpet）、涡轮型（Turbine）和定向型（Directional）等。苜蓿叶型立交占用土地较少但交织段较多。定向型立交通行效率最高但占地最大。玩家需要根据交通流量和可用空间选择合适的立交形式，也可以创建自定义立交。

Interchanges allow vehicles to freely transition between different directions through grade separation without conflict. Common highway interchange types include Cloverleaf, Trumpet, Turbine, and Directional designs. Cloverleaf interchanges occupy less land but have more weaving sections. Directional interchanges offer the highest traffic efficiency but require the most land. Players need to choose appropriate interchange forms based on traffic volume and available space, or create custom interchanges.

交通AI与通行规则 / Traffic AI & Rules

城市天际线2的交通AI较一代有显著改进。车辆现在会根据目的地选择最优路径，并能够智能选择车道。车辆在接近交叉口时会提前变道，减少突然变道导致的拥堵。但交通AI仍然不完美，在某些情况下可能出现奇怪的行为。理解交通AI的工作方式有助于设计更高效的交通网络。

Cities: Skylines 2’s traffic AI has significant improvements over the first game. Vehicles now choose optimal paths based on destinations and can intelligently select lanes. Vehicles change lanes提前 approaching intersections, reducing congestion from sudden lane changes. However, the traffic AI is still not perfect and may exhibit strange behaviors in certain situations. Understanding how the traffic AI works helps design more efficient traffic networks.

车道管理 / Lane Management

车辆根据目的地选择车道是解决交通问题的关键。在交叉口前，通过道路标线引导车辆提前进入正确车道可以大幅提升通行效率。游戏支持通过模组实现更精细的车道管理，如禁止某些方向的转弯、设置专用转弯车道等。合理设置车道数量也很重要，一条四车道道路如果所有车辆都要右转，而右转只有一条车道，就会形成排队。

Vehicles choosing lanes based on destinations is key to solving traffic problems. Before intersections, using road markings to guide vehicles into correct lanes提前 significantly improves efficiency. The game supports finer lane management through mods, such as prohibiting certain turning directions or setting dedicated turning lanes. Reasonable lane quantity allocation is also important: if all vehicles on a four-lane road need to turn right but there is only one right-turn lane, queuing occurs.

停车系统 / Parking System

城市天际线2引入了停车系统。市民会驾驶车辆出行并在目的地附近寻找停车位。停车位的数量和位置影响市民的出行选择。如果目的地停车位不足，市民可能选择其他出行方式或其他目的地。玩家可以通过建设停车场（Parking Lot）和路边停车位来满足停车需求。合理规划停车设施可以减少因寻找停车位而造成的交通拥堵。

Cities: Skylines 2 introduces a parking system. Citizens drive vehicles and look for parking spaces near destinations. The number and location of parking spaces affect citizens’ travel choices. If destination parking is insufficient, citizens may choose other travel modes or other destinations. Players can meet parking demand by building Parking Lots and on-street parking spaces. Proper parking facility planning reduces traffic congestion caused by searching for parking spaces.

公共交通 / Public Transit

公交车 / Bus

公交车是最基础、成本最低的公共交通方式。公交线路连接住宅区、商业区和工作区。公交车站需要合理分布，通常每 200 到 400 米设置一个车站。公交线路不宜过长，否则会降低准点率。公交专用道可以提高公交车的运行效率。公交车适合作为城市公共交通网络的基础层，服务于中低密度的出行需求。

Buses are the most basic and lowest-cost public transit mode. Bus routes connect residential, commercial, and work areas. Bus stops need合理分布, typically every 200 to 400 meters. Bus routes should not be too long, as this reduces punctuality. Bus lanes can improve bus operational efficiency. Buses suit the base layer of urban public transit networks, serving low-to-medium density travel needs.

电车 / Tram

电车是中容量的公共交通方式，运量大于公交车但小于地铁。电车轨道可以铺设在地面道路上，也可以建设专用路段。电车适合中密度区域的中距离出行。电车系统需要架设电线，初始建设成本高于公交但低于地铁。电车车辆编组可以随着需求增长而增加。电车是连接区域中心和主要交通走廊的良好选择。

Trams are medium-capacity public transit, with higher capacity than buses but lower than subways. Tram tracks can be laid on roads or built on dedicated sections. Trams suit medium-distance travel in medium-density areas. The tram system requires overhead wires, with initial construction costs higher than buses but lower than subways. Tram formations can increase as demand grows. Trams are a good choice for connecting district centers and major traffic corridors.

火车 / Train

火车是大容量、长距离的交通方式。城市内的火车站可以作为区域通勤铁路的枢纽。火车线路将城市内的不同区域以及城市与外部连接起来。火车站需要合理选址，通常与其它公共交通方式结合，形成综合交通枢纽。火车运量大、速度快，适合远距离通勤和货物运输。

Trains are high-capacity, long-distance transportation. Train stations within the city can serve as regional commuter rail hubs. Train routes connect different areas within the city and link the city to the outside. Train stations need合理选址, typically combined with other public transit modes to form comprehensive transportation hubs. Trains offer high capacity and speed, suitable for long-distance commuting and freight transport.

地铁 / Metro

地铁是大容量、高速度的城市内部公共交通方式。地铁完全在地下运行，不占用地面空间，是解决大城市交通拥堵的最佳方式。地铁线路规划需要考虑人口密集区域和主要交通目的地。地铁站间距通常为 500 到 800 米。地铁建设成本最高但运营效率也最高。地铁网络应该覆盖城市主要走廊，并与其它公共交通方式形成换乘。

Metro is high-capacity, high-speed urban public transit operating completely underground, not occupying ground space, making it the best solution for traffic congestion in large cities. Metro route planning needs to consider densely populated areas and major travel destinations. Metro station spacing is typically 500 to 800 meters. Metro has the highest construction costs but also the highest operational efficiency. The metro network should cover major urban corridors and form transfers with other public transit modes.

机场 / Airport

机场提供城市对外航空交通，是全球化城市的重要标志。机场建筑包括航站楼、跑道、停机坪和货运设施。机场可以选择小型机场或大型国际机场。机场需要占用大量土地，通常放置在远离市中心的郊区，并通过高速公路或轨道交通与市区连接。机场带动周边商业和酒店业发展，提升城市吸引力和旅游业收入。

Airports provide external air transportation and are important symbols of global cities. Airport buildings include terminals, runways, aprons, and cargo facilities. Airports can be小型 or large international airports. Airports require大量 land, typically placed in suburbs远离 city center, connected to the city via highways or rail transit. Airports drive surrounding commercial and hotel development, enhancing city attractiveness and tourism revenue.

港口 / Ship Port

港口提供水上运输服务，包括客运和货运。港口需要建在河流或海岸线上。货运港口处理进出口货物，是产业链的重要组成部分。客运港口提供水上客运服务，可以带动旅游业发展。港口需要与公路和铁路网络连接，实现多式联运。合理的港口布局可以大幅降低货物运输成本，提升城市经济效率。

Ports provide water transportation services, including passenger and cargo transport. Ports must be built on rivers or coastlines. Cargo ports handle import and export goods and are important parts of the production chain. Passenger ports provide水上客运 services, boosting tourism development. Ports need connections to road and rail networks for multimodal transport. Reasonable port layout can significantly reduce cargo transport costs and improve city economic efficiency.

交通管理策略 / Traffic Management Strategies

有效的交通管理需要综合多种手段。鼓励公共交通使用，通过提高私家车使用成本（如减少停车位）来引导市民选择公交。优化道路网络结构，减少不必要的交叉口和长距离绕行。合理布局城市功能区，减少跨区域长距离通勤需求。使用交通管理模组可以更精确地控制信号灯配时和车道分配。定期检查城市交通报告，识别交通热点并针对性解决。

Effective traffic management requires multiple approaches. Encourage public transit use by increasing private car costs (such as reducing parking spaces) to guide citizens toward bus transit. Optimize road network structure by reducing unnecessary intersections and long-distance detours. Reasonably arrange urban functional areas to reduce cross-region long-distance commuting needs. Using traffic management mods allows more precise control of signal timing and lane allocation. Regularly check city traffic reports to identify hotspots and solve them specifically.

道路美化与装饰 / Road Beautification

除了功能性，道路也是城市景观的重要组成部分。行道树可以提升道路环境质量，增加周边土地价值。路灯保障夜间照明，提高交通安全。自行车道鼓励绿色出行。人行道和步行区提升行人友好度。道路装饰虽然没有直接经济回报，但可以通过提升城市吸引力间接促进旅游业和商业发展。美观的道路网络是高品质城市的标志之一。

Beyond functionality, roads are also important components of the city landscape. Street trees improve road environmental quality and increase surrounding land value. Street lights ensure nighttime illumination and improve traffic safety. Bike lanes encourage green travel. Sidewalks and pedestrian zones enhance pedestrian friendliness. Road decoration may not have direct economic returns but indirectly promotes tourism and commercial development by enhancing city attractiveness. Beautiful road networks are one of the hallmarks of a high-quality city.

路网规划实例 / Road Network Planning Examples

良好的路网规划需要结合实际案例分析。小型城市适合网格状路网，主干道间距200米左右。中型城市需要主干道、次干道和支路三级体系，主干道间距400米。大型城市需要高速公路环线加放射状路网，配合完善的公共交通系统。高密度商业区需要加密路网，提供多条进出通道。工业区需要宽敞的道路支持大型货车通行。住宅区道路可以适当弯曲降低车速。每种功能区的路网需求不同，需要针对性设计。

Good road network planning needs real case analysis. Small cities suit grid networks with arterial spacing around 200 meters. Medium cities need a three-tier hierarchy of arterials, collectors, and local roads, with arterials spaced 400 meters apart. Large cities require highway ring roads plus radial networks, complemented by complete public transit systems. High-density commercial areas need denser road networks with multiple access points. Industrial zones need wide roads for large truck traffic. Residential area roads can curve appropriately to reduce vehicle speeds. Each functional area has different road network needs requiring targeted design.

交通流量分析工具 / Traffic Flow Analysis Tools

游戏提供了多种交通数据分析工具。交通地图视图以颜色编码显示各道路的拥堵程度，绿色表示畅通，红色表示拥堵，深红色表示严重拥堵。路线查询功能可以查看特定车辆的行驶路径，帮助识别路线规划问题。路口流量统计显示各交叉口的车辆等待时间。公共交通使用率数据帮助优化公交线路和发车频率。熟练使用这些分析工具可以精准定位交通问题，避免盲目建设。定期检查交通数据是良好的管理习惯。

The game provides various traffic data analysis tools. The traffic map view uses color coding to show congestion levels on each road, with green indicating smooth flow, red indicating congestion, and dark red indicating severe congestion. The route query function lets you view specific vehicles’ travel paths, helping identify route planning issues. Intersection statistics display vehicle waiting times at each junction. Public transit usage data helps optimize bus routes and service frequency. Mastering these analysis tools precisely identifies traffic problems, avoiding盲目 construction. Regular traffic data checks are good management habits.

Tags: 道路交通, roads and traffic, 公共交通, public transit, 立交桥, interchange, 交通AI, traffic AI, 道路层级, road hierarchy, 停车, parking