{"id":108,"date":"2026-07-31T20:19:39","date_gmt":"2026-07-31T12:19:39","guid":{"rendered":"https:\/\/www.livablehub.com\/?p=108"},"modified":"2026-07-31T20:19:39","modified_gmt":"2026-07-31T12:19:39","slug":"the-empty-bus-lane-is-a-visual-illusion","status":"publish","type":"post","link":"https:\/\/www.livablehub.com\/?p=108","title":{"rendered":"The \u201cEmpty\u201d Bus Lane Is a Visual Illusion"},"content":{"rendered":"\n

A reflection on<\/em> Human Transit: How Clearer Thinking About Public Transit Can Enrich Our Communities and Our Lives<\/strong><\/em> by Jarrett Walker<\/em><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

One of the most common arguments against dedicated bus lanes is surprisingly simple:<\/p>\n\n\n\n

“Why reserve an entire lane for buses when it’s empty most of the time?!”<\/p>\n\n\n\n

If you’ve ever been stuck in traffic while the bus lane beside you appears almost deserted\u2014with only an occasional bus speeding past\u2014it’s easy to feel that valuable road space is being wasted.<\/p>\n\n\n\n

The problem is that our eyes are misleading us.<\/p>\n\n\n\n

Why Do Bus Lanes Look “Empty”?<\/h2>\n\n\n\n

1. A Visual Illusion<\/h3>\n\n\n\n

A bus lane is designed to keep buses moving.<\/p>\n\n\n\n

Because buses don’t get trapped in congestion, they travel much faster than surrounding traffic. To drivers sitting in a traffic jam, buses simply flash by and disappear.<\/p>\n\n\n\n

Cars, on the other hand, spend much more time occupying your field of view because they’re crawling along or completely stopped.<\/p>\n\n\n\n

Ironically, the less congestion a lane has, the “emptier” it appears.<\/strong><\/p>\n\n\n\n

<\/p>\n\n\n\n

2. Vehicles Are Not People<\/h3>\n\n\n\n

Another common mistake is judging road performance by counting vehicles instead of people.<\/p>\n\n\n\n

A single bus may carry 50 passengers<\/strong>.<\/p>\n\n\n\n

Those same 50 people would require roughly 30\u201340 private cars<\/strong>, depending on average vehicle occupancy.<\/p>\n\n\n\n

When you see one bus, you’re actually seeing the equivalent of dozens of cars.<\/p>\n\n\n\n

Your eyes count one vehicle.<\/p>\n\n\n\n

The road is moving fifty people.<\/p>\n\n\n\n

<\/p>\n\n\n\n

3. A “Full” Bus Lane Is Actually Bad News<\/h3>\n\n\n\n

Many people assume an effective lane should always look busy.<\/p>\n\n\n\n

For bus lanes, the opposite is true.<\/p>\n\n\n\n

If buses are bumper-to-bumper, the lane is congested.<\/p>\n\n\n\n

That means the system is no longer operating efficiently.<\/p>\n\n\n\n

A successful bus lane should have relatively few vehicles while moving a large number of passengers.<\/p>\n\n\n\n

Its goal is not to maximize the number of buses.<\/p>\n\n\n\n

Its goal is to maximize the number of people transported.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Moving People, Not Cars<\/h2>\n\n\n\n

When discussing congestion, we often focus on how to move more vehicles.<\/p>\n\n\n\n

But transportation isn’t about moving cars.<\/p>\n\n\n\n

It’s about moving people.<\/p>\n\n\n\n

A simple calculation illustrates the difference.<\/p>\n\n\n\n

A general traffic lane typically carries:<\/p>\n\n\n\n

    \n
  • 2,000 cars per hour<\/strong><\/li>\n\n\n\n
  • 1.2 people per car<\/strong><\/li>\n<\/ul>\n\n\n\n

    That’s approximately 2,400 people per hour<\/strong>.<\/p>\n\n\n\n

    Now consider a dedicated bus lane.<\/p>\n\n\n\n

    If it carries:<\/p>\n\n\n\n

      \n
    • 60 buses per hour<\/strong><\/li>\n\n\n\n
    • 50 passengers per bus<\/strong><\/li>\n<\/ul>\n\n\n\n

      It transports 3,000 people per hour<\/strong>.<\/p>\n\n\n\n

      The bus lane contains far fewer vehicles, yet it moves significantly more people using exactly the same amount of road space.<\/p>\n\n\n\n

      \"\"<\/figure>\n\n\n\n

      A Real-World Example from Melbourne<\/h3>\n\n\n\n

      Jarrett Walker cites an excellent example from Hoddle Street in Melbourne, Australia<\/strong>.<\/p>\n\n\n\n

      During the afternoon peak, one dedicated bus lane carried more passengers than the three adjacent traffic lanes combined.<\/strong><\/p>\n\n\n\n

      On freeways, this illusion becomes even stronger.<\/p>\n\n\n\n

      When buses cruise past stationary traffic at normal operating speed, they almost disappear from the perspective of drivers trapped in congestion.<\/p>\n\n\n\n

      An efficient bus lane often looks empty precisely because it is working.<\/p>\n\n\n\n

      <\/p>\n\n\n\n

      So What Is the Real Waste?<\/h2>\n\n\n\n

      The real waste isn’t an apparently empty bus lane.<\/p>\n\n\n\n

      The real waste is:<\/p>\n\n\n\n

        \n
      • Thousands of cars occupying valuable urban road space while carrying only one person each.<\/li>\n\n\n\n
      • Dedicating scarce street capacity to the least space-efficient mode of transportation.<\/li>\n<\/ul>\n\n\n\n

        Once we evaluate streets by people moved instead of vehicles counted<\/strong>, dedicated bus lanes stop looking like wasted space.<\/p>\n\n\n\n

        Instead, they become one of the smartest investments a city can make.<\/p>\n\n\n\n

        <\/p>\n\n\n\n

        Don’t Let Your Eyes Fool You<\/h2>\n\n\n\n

        An “empty” bus lane is often carrying far more people than a congested traffic lane beside it.<\/p>\n\n\n\n

        It looks empty.<\/p>\n\n\n\n

        But it’s actually full of passengers.<\/p>\n\n\n\n

        The lane is serving people\u2014not vehicles.<\/p>\n\n\n\n

        Understanding this simple distinction changes the entire conversation about urban mobility.<\/p>\n\n\n\n

        A truly livable city isn’t one where every lane is packed with cars.<\/p>\n\n\n\n

        It’s one where people can travel efficiently, reliably, and comfortably\u2014regardless of how they choose to move.<\/p>\n\n\n\n

        <\/p>\n\n\n\n

        Three Questions from Human Transit<\/em><\/h2>\n\n\n\n

        Jarrett Walker concludes with three thought-provoking questions that every city should ask:<\/p>\n\n\n\n

          \n
        1. What proportion of people on this street are traveling by bus rather than by car?<\/strong>
          Should road space be allocated according to the number of people being moved rather than the number of vehicles?<\/li>\n\n\n\n
        2. How much faster would buses become with dedicated lanes?<\/strong>
          How would that increase the area people can reach within, say, a 30-minute journey?<\/li>\n\n\n\n
        3. If public transport became significantly faster and more reliable, would more people choose it?<\/strong>
          And perhaps more importantly: Would you?<\/strong><\/li>\n<\/ol>\n\n\n\n

          Reference:<\/em><\/p>\n\n\n\n

          Walker, J. (2011). Human Transit: How Clearer Thinking About Public Transit Can Enrich Our Communities and Our Lives.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

          A reflection on Human Transit: How Clearer Thinking Abo […]<\/p>\n","protected":false},"author":1,"featured_media":110,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[29],"tags":[30,31],"class_list":["post-108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-public-transport","tag-bus-lane","tag-bus-priority"],"jetpack_featured_media_url":"https:\/\/www.livablehub.com\/wp-content\/uploads\/2026\/07\/image-1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.livablehub.com\/index.php?rest_route=\/wp\/v2\/posts\/108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.livablehub.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.livablehub.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.livablehub.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.livablehub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=108"}],"version-history":[{"count":1,"href":"https:\/\/www.livablehub.com\/index.php?rest_route=\/wp\/v2\/posts\/108\/revisions"}],"predecessor-version":[{"id":111,"href":"https:\/\/www.livablehub.com\/index.php?rest_route=\/wp\/v2\/posts\/108\/revisions\/111"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.livablehub.com\/index.php?rest_route=\/wp\/v2\/media\/110"}],"wp:attachment":[{"href":"https:\/\/www.livablehub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.livablehub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.livablehub.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}