{"id":3298,"date":"2026-05-14T23:16:52","date_gmt":"2026-05-14T21:16:52","guid":{"rendered":"https:\/\/nature-o.net\/?page_id=3298"},"modified":"2026-05-14T23:16:53","modified_gmt":"2026-05-14T21:16:53","slug":"smart-city-impact-calculator","status":"publish","type":"page","link":"https:\/\/nature-o.net\/?page_id=3298","title":{"rendered":"Smart City Impact Calculator"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-smart-city-3c7fa\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">Smart City Impact Calculator<\/h2>\n    <p class=\"eco-tool__lead\">\n      Estimate how smart city systems can reduce energy use, traffic delays, CO\u2082 emissions, and operating costs.\n    <\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" id=\"eco-city-form-3c7fa\" novalidate>\n    <div class=\"eco-tool__grid3\">\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-city-pop-3c7fa\">City population<br>(people)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-city-pop-3c7fa\" type=\"number\" min=\"1\" step=\"1000\" value=\"100000\">\n        <div class=\"eco-tool__hint\">Number of residents in the city or district.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-city-energy-3c7fa\">Public energy use<br>(kWh\/person\/year)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-city-energy-3c7fa\" type=\"number\" min=\"0\" step=\"10\" value=\"450\">\n        <div class=\"eco-tool__hint\">Streetlights, public buildings, sensors, transit systems.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-city-traffic-3c7fa\">Traffic delay<br>(hours\/person\/year)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-city-traffic-3c7fa\" type=\"number\" min=\"0\" step=\"1\" value=\"40\">\n        <div class=\"eco-tool__hint\">Average annual time lost in congestion.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-city-smart-3c7fa\">Smart systems<br>coverage (%)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-city-smart-3c7fa\" type=\"number\" min=\"0\" max=\"100\" step=\"1\" value=\"35\">\n        <div class=\"eco-tool__hint\">Traffic lights, smart lighting, sensors, automation.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-city-co2-3c7fa\">Electricity CO\u2082 factor<br>(kg\/kWh)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-city-co2-3c7fa\" type=\"number\" min=\"0\" step=\"0.01\" value=\"0.4\">\n        <div class=\"eco-tool__hint\">Depends on local energy mix.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-city-view-3c7fa\">Main result<br>view<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-city-view-3c7fa\">\n          <option value=\"energy\">Energy saved<\/option>\n          <option value=\"co2\">CO\u2082 reduction<\/option>\n          <option value=\"traffic\">Traffic hours saved<\/option>\n          <option value=\"score\">Smart city score<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Choose the main output.<\/div>\n      <\/div>\n\n    <\/div>\n\n    <div class=\"eco-tool__actions\">\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn\" onclick=\"calc3c7fa()\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" onclick=\"reset3c7fa()\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"err-3c7fa\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"res-3c7fa\" hidden>\n    <div class=\"eco-tool__cards\">\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Main result<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"main-3c7fa\"><\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"sub-3c7fa\"><\/div>\n      <\/div>\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Smart city score<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"score-3c7fa\"><\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"score-sub-3c7fa\"><\/div>\n      <\/div>\n\n    <\/div>\n\n    <p class=\"eco-tool__note\">\n      Planning estimate only. Real smart city impact depends on infrastructure quality, public transport, urban density, energy mix, policy, and citizen adoption.\n    <\/p>\n  <\/div>\n<\/div>\n\n<style>\n.eco-tool{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:16px}\n.eco-tool__header{margin-bottom:12px}\n.eco-tool__title{margin:0 0 8px}\n.eco-tool__lead{margin:0;opacity:.9}\n.eco-tool__grid3{display:grid;grid-template-columns:1fr;gap:16px}\n@media(min-width:860px){.eco-tool__grid3{grid-template-columns:1fr 1fr 1fr}}\n.eco-tool__field{display:flex;flex-direction:column;gap:6px}\n.eco-tool__label{font-weight:600}\n.eco-tool__input{width:100%;height:44px;padding:0 12px;border:1px solid rgba(0,0,0,.2);border-radius:10px;background:#fff;box-sizing:border-box;font:inherit}\n.eco-tool select.eco-tool__input{appearance:none;-webkit-appearance:none;line-height:44px;padding-right:40px;background-image:linear-gradient(45deg,transparent 50%,rgba(0,0,0,.6) 50%),linear-gradient(135deg,rgba(0,0,0,.6) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 12px) 50%;background-size:6px 6px;background-repeat:no-repeat}\n.eco-tool__hint{font-size:.92em;opacity:.78;min-height:38px}\n.eco-tool__actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:16px}\n.eco-tool__btn{padding:10px 22px}\n.eco-tool__btn--ghost{background:transparent!important;border:1px solid rgba(0,0,0,.2)!important}\n.eco-tool__btn--ghost:hover{background:rgba(0,0,0,.06)!important}\n.eco-tool__error{font-weight:600}\n.eco-tool__result{margin-top:16px}\n.eco-tool__cards{display:grid;gap:10px;grid-template-columns:1fr}\n@media(min-width:860px){.eco-tool__cards{grid-template-columns:1fr 1fr}}\n.eco-tool__card{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px}\n.eco-tool__metric-label{opacity:.85;font-weight:600}\n.eco-tool__metric-value{font-size:1.6em;font-weight:800;margin-top:6px}\n.eco-tool__metric-sub{opacity:.85;margin-top:6px}\n.eco-tool__note{margin:10px 0 0;opacity:.9}\n<\/style>\n\n<script>\nfunction calc3c7fa(){\n\n  let pop=+document.getElementById('eco-city-pop-3c7fa').value;\n  let energy=+document.getElementById('eco-city-energy-3c7fa').value;\n  let traffic=+document.getElementById('eco-city-traffic-3c7fa').value;\n  let coverage=+document.getElementById('eco-city-smart-3c7fa').value;\n  let co2=+document.getElementById('eco-city-co2-3c7fa').value;\n  let view=document.getElementById('eco-city-view-3c7fa').value;\n  let err=document.getElementById('err-3c7fa');\n\n  err.textContent=\"\";\n\n  if(pop<=0||energy<0||traffic<0||coverage<0||coverage>100||co2<0){\n    err.textContent=\"Please enter valid values.\";\n    document.getElementById('res-3c7fa').hidden=true;\n    return;\n  }\n\n  let coverageFactor=coverage\/100;\n\n  let energySaved=pop*energy*0.18*coverageFactor;\n  let co2Saved=energySaved*co2;\n  let trafficSaved=pop*traffic*0.22*coverageFactor;\n\n  let score=Math.round(\n    Math.min(100,\n      (coverage*0.55)+\n      (Math.min(energySaved\/(pop*100),30))+\n      (Math.min(trafficSaved\/(pop*2),15))\n    )\n  );\n\n  let label=\"Developing\";\n  let note=\"Smart systems are present but still limited.\";\n\n  if(score>=70){\n    label=\"Advanced\";\n    note=\"Smart systems could deliver strong urban efficiency gains.\";\n  }else if(score>=40){\n    label=\"Growing\";\n    note=\"Smart city potential is moderate and can improve with wider coverage.\";\n  }\n\n  let mainText=energySaved.toLocaleString(undefined,{maximumFractionDigits:0})+\" kWh\";\n  let subText=\"Estimated yearly public energy saved\";\n\n  if(view===\"co2\"){\n    mainText=(co2Saved\/1000).toLocaleString(undefined,{maximumFractionDigits:1})+\" t CO\u2082\";\n    subText=\"Estimated yearly CO\u2082 reduction\";\n  }\n\n  if(view===\"traffic\"){\n    mainText=trafficSaved.toLocaleString(undefined,{maximumFractionDigits:0})+\" hours\";\n    subText=\"Estimated yearly congestion time saved\";\n  }\n\n  if(view===\"score\"){\n    mainText=score+\"\/100\";\n    subText=label+\" smart city readiness\";\n  }\n\n  document.getElementById('main-3c7fa').innerText=mainText;\n  document.getElementById('sub-3c7fa').innerText=subText;\n\n  document.getElementById('score-3c7fa').innerText=score+\"\/100\";\n  document.getElementById('score-sub-3c7fa').innerText=note;\n\n  document.getElementById('res-3c7fa').hidden=false;\n}\n\nfunction reset3c7fa(){\n  document.getElementById('eco-city-pop-3c7fa').value=100000;\n  document.getElementById('eco-city-energy-3c7fa').value=450;\n  document.getElementById('eco-city-traffic-3c7fa').value=40;\n  document.getElementById('eco-city-smart-3c7fa').value=35;\n  document.getElementById('eco-city-co2-3c7fa').value=0.4;\n  document.getElementById('eco-city-view-3c7fa').value=\"energy\";\n  document.getElementById('err-3c7fa').textContent=\"\";\n  document.getElementById('res-3c7fa').hidden=true;\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Smart City Impact Calculator Estimate how smart city systems can reduce energy use, traffic delays, CO\u2082 emissions, and operating costs. City population(people) Number of residents in the city or district.&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2696,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"_links":{"self":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/3298"}],"collection":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3298"}],"version-history":[{"count":1,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/3298\/revisions"}],"predecessor-version":[{"id":3299,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/3298\/revisions\/3299"}],"up":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2696"}],"wp:attachment":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}