约翰逊巷立交将改建为蒙大拿州首座分流式钻石立交：比灵斯绕道工程新进展、2027年春季动工
蒙大拿州交通厅近日授予合同，推进比灵斯绕道工程的下一路段，将洛克伍德市的约翰逊巷立交改造为该州首座分流式钻石立交，这一消息于10月30日由美国州公路与运输官员协会期刊披露。
与传统立交不同，分流式钻石立交会让车流在桥面区段短暂切换至道路左侧行驶，从而减少左转冲突点、提高通行效率。蒙大拿州交通厅表示，目前已在进行地下管线迁移等前期小规模施工，立交主体工程预计2027年春季开工。
由于约翰逊巷立交规模大、结构复杂，整个改建工程预计耗时三个施工季，其中前两个施工季的重点是重建跨越约翰逊巷的90号州际公路桥梁，以容纳加宽后的路幅，并完成建设新立交所需的道路改造。蒙大拿州交通厅比灵斯地区负责人迈克·泰勒在声明中介绍了工程安排。
比灵斯绕道是该地区重要的交通疏解工程，约翰逊巷立交改建完成后，有望缓解当地进出90号州际公路的拥堵，并为今后更大规模的路网升级留出空间。
来源：GSM·美国
Billings Bypass Advances: Johnson Lane Interchange in Lockwood to Become Montana's First Diverging Diamond, Construction Starting Spring 2027
Lockwood, Montana — The Montana Department of Transportation has awarded a contract for the next segment of the Billings Bypass project, which will transform the Johnson Lane Interchange in Lockwood into the state's first diverging diamond interchange, the AASHTO Journal reported on October 30.
Unlike a traditional interchange, a diverging diamond briefly shifts traffic to the left side of the roadway, reducing left-turn conflict points and improving efficiency. Montana DOT said minor work such as relocating underground utilities is already under way, with construction of the interchange expected to begin in spring 2027.
Because of the interchange's size and complexity, construction is expected to take three seasons; the first two will focus on reconstructing the Interstate 90 bridges over Johnson Lane to accommodate the wider roadway and completing the roadwork needed for the new interchange. Mike Taylor, administrator of Montana DOT's Billings District, outlined the arrangements in a statement.
The Billings Bypass is an important traffic-relief project for the area, and the rebuilt interchange is expected to ease congestion around I-90 access and leave room for larger road network upgrades in the future.
Source: GSM America
来源：GSM·美国（原文链接）
图片来源：图：MontanaStateCapitol2008。来源：Wikimedia Commons（Parkerdr，CC BY-SA 3.0）
