"A"and"B" Streets
A類(lèi)型和B類(lèi)型街道
The classification of A and B streets was invented by new urbanists to prioritize thoroughfares that were捻艳，or could be transformed into宠进，commendable predestrian experience.The classification is rudimentary but helps identify pedestrian-friendly and auto-oriented thoroughfares
A和B類(lèi)型街道的分類(lèi)是由新都市主義者發(fā)明墅垮，給那些已經(jīng)是或可能可以轉(zhuǎn)化為行人友好的道路以?xún)?yōu)先權(quán)走芋。這種分類(lèi)很簡(jiǎn)單酝掩，但有助于識(shí)別行人友好和自動(dòng)導(dǎo)向的道路灰瞻。
A streets are thoroughfares that provide an excellent pedestrian experience and promote safety猿诸，comfort，and convenience for pedestrians.These streets have the characteristics that are good for walking such as buildings and entrances fronting the street暖夭，wide sidewalks锹杈，crosswalks撵孤，street trees迈着，well-designed street lighting竭望，narrow curb-to-curb dimensions，small curb radii裕菠，parallel parking on-street咬清，and lower traffic speeds.
A類(lèi)型街道提供了良好的行人體驗(yàn)，是安全奴潘，舒適和便利的通道旧烧。這些街道具有適合步行的特點(diǎn)，如街道前面的建筑物和入口画髓，寬闊的人行道掘剪，人行橫道，街道樹(shù)木奈虾，精心設(shè)計(jì)的街道照明夺谁，狹窄的路緣到路邊尺寸，小道路轉(zhuǎn)彎半徑肉微，與街道平行的停車(chē)位和較低的通車(chē)速度匾鸥。
B streets are thoroughfares that are intended for automobile-related functions such as access to parking lots or garages，loading docks碉纳，drive-through businesses勿负，and gas stations.They are less accommodating of pedestrians.Frontage and build-to-line requirements may be less stringent on B streets.
B類(lèi)型街道是用于與汽車(chē)相關(guān)功能的通道，例如進(jìn)入停車(chē)場(chǎng)或車(chē)庫(kù)劳曹，裝卸碼頭奴愉，免下車(chē)商業(yè)和加油站的通道。他們對(duì)行人的接納度較低铁孵。建筑外立面和臨街界面的進(jìn)退要求對(duì)B類(lèi)型街道不太嚴(yán)格躁劣。
The diagram on the left illustrates a tartan grid of alternating A and B streets鳖擒。The A streets have a narrow curb-to-curb dimension，on-street parking烫止，and street trees蒋荚，whereas the B streets have a wider curb-to-curb dimension，dedicated left turn lanes馆蠕，and access to alleys期升。
左邊的圖表顯示了交織的A類(lèi)和B類(lèi)街道的網(wǎng)格惊奇。A類(lèi)街道狹窄，路緣到路邊的尺寸很小播赁，有路邊停車(chē)場(chǎng)和街道樹(shù)颂郎；而B(niǎo)類(lèi)街道路緣到路邊的尺寸更寬，有專(zhuān)用的左轉(zhuǎn)車(chē)道容为，以及通往小巷的通道乓序。
The block platting achieves a bias toward A streets by having two-thirds of the lots front the A streets and one-third face the B streets。All lots are accessible from the Alley network.
街區(qū)用地三分之二面向A類(lèi)街道坎背，三分之一面向B類(lèi)街道實(shí)現(xiàn)向A街道傾斜替劈。所有地塊都可以從小路網(wǎng)絡(luò)進(jìn)入。
Corner lots are usually desirable for retail businesses as they are visible from four directions得滤。Lots at the intersection of A and B streets are optimum for retail businesses that rely on both pedestrian and vehiclar traffic陨献。
對(duì)于零售商業(yè)來(lái)說(shuō)，街角地塊通常是理想的懂更，因?yàn)樗鼈兛梢詮乃膫€(gè)方向被看到眨业。在A類(lèi)型和B類(lèi)型街道交叉口處的地段對(duì)于依賴(lài)行人和車(chē)輛交通的零售商業(yè)來(lái)說(shuō)就最好了。
In retrofit situations膜蛔，A streets may be designated to receive prioritized spending for pedestrian and bicyclist safety坛猪，street-tree plantings，and other elements that are desirable on pedestrian-friendly thoroughfares皂股。
在改造情況下墅茉，可以設(shè)計(jì)A類(lèi)型街道來(lái)為行人和騎自行車(chē)者的安全，行道樹(shù)的種植呜呐，以及行人友好通道所需的其他元素的獲得優(yōu)先費(fèi)用就斤。
