THE BUILT ENVIRONMENT AND CONSEQUENTLY VEHICULAR TRANSPORT HAS A SIGNIFICANT IMPACT ON PUBLIC HEALTH AND ENVIRONMENTAL QUALITY. ALSO VEHICULAR TRANSPORT AS AN IMPACT OF BUILT ENVIRONMENT IS ONE OF THE MOST IMPORTANT SOURCE FOR ENVIRONMENTAL DECAY SUCH AS NOISE POLLUTION IN CITY CENTERS. SO, ONE OF THE TRANSPORT SCHEMES LIKE PEDESTRIANIZATION CAN HAVE A SIGNIFICANT IMPACT ON ENVIRONMENTAL QUALITY AND IMPROVE NOISE POLLUTION CONDITION. THIS PAPER SHOWS, TO WHAT EXTENT THE BUILT ENVIRONMENT AND IMPLEMENTATION OF PEDETRIANIZATION SCHEME HAS INFLUENCE ON REDUCING NOISE POLLUTION LEVEL AT TEHRAN’ CITY CENTER.THE HIGH DENSITY LAND DEVELOPMENT, LAND USE MIX, CONNECTED STREET NETWORKS AND RETAIL FLOOR AREA RATIO CAN PROMOTE PHYSICAL ACTIVITY AND DECREASE EMISSIONS OF AIR POLLUTANTS. BUT ALSO INCREASED COMPACTNESS, CAN INCREASE TRAFFIC CONGESTION AND EXPOSURE OF HARMFUL EMISSIONS WITHIN CENTRAL AREAS AND INCREASE NOISE POLLUTION LEVEL. BUILT ENVIRONMENT CAN REDUCE TRIP RATES, THROUGH THREE PRINCIPAL DIMENSIONS, DENSITY, LAND USE DIVERSITY AND PEDESTRIAN-ORIENTED DESIGNS AND ENCOURAGE PEOPLE TO NON-AUTO TRAVEL WHICH THIS FINALLY LEAD TO INCREASE WALKABILITY AND REDUCE AIR AND NOISE POLLUTION. THEREFORE, STRATEGIES TO PROMOTE AIR QUALITY IN CITY CENTERS ARE REQUIRED TO ENABLE LARGER HEALTH BENEFITS.THE RESULTS OF THE SURVEY SUGGEST THAT THE IMPLEMENTATION OF PEDESTRIANISATION IN TEHRAN'S CITY CENTER HAS BEEN VERY SUCCESSFUL; ENVIRONMENTAL CONDITIONS AND PEDESTRIAN SAFETY HAVE IMPROVED CONSIDERABLY. AS A RESULT WAS FOUNDED AN INCREASE IN WALKABILITY TO BE ASSOCIATED WITH AN INCREASE IN TIME SPENT IN PHYSICALLY ACTIVE TRAVEL, FEWER VEHICLE MILES TRAVELED, FEWER LEVEL OF NOISE POLLUTION.

THE BUILT ENVIRONMENT AND CONSEQUENTLY VEHICULAR TRANSPORT HAS A SIGNIFICANT IMPACT ON PUBLIC HEALTH AND ENVIRONMENTAL QUALITY. ALSO VEHICULAR TRANSPORT AS AN IMPACT OF BUILT ENVIRONMENT IS ONE OF THE MOST IMPORTANT SOURCE FOR ENVIRONMENTAL DECAY SUCH AS NOISE POLLUTION IN CITY CENTERS. SO, ONE OF THE TRANSPORT SCHEMES LIKE PEDESTRIANISATION CAN HAVE A SIGNIFICANT IMPACT ON ENVIRONMENTAL QUALITY AND IMPROVE NOISE POLLUTION CONDITION. THIS PAPER SHOWS, TO WHAT EXTENT THE BUILT ENVIRONMENT AND IMPLEMENTATION OF PEDETRIANISATION SCHEME HAS INFLUENCE ON REDUCING NOISE POLLUTION LEVEL AT TEHRAN’ CITY CENTER.THERE IS A DIRECT INTERACTION BETWEEN MAN, HUMAN HEALTH, ENVIRONMENT QUALITY, SUSTAINABLE DEVELOPMENT AND PEDESTRIANISATION. THE RESULTS OF THE SURVEY SUGGEST THAT THE IMPLEMENTATION OF PEDESTRIANISATION IN TEHRAN'S CITY CENTER HAS BEEN VERY SUCCESSFUL. AS A RESULT WAS FOUNDED AN INCREASE IN WALKABILITY TO BE ASSOCIATED WITH AN INCREASE IN TIME SPENT IN PHYSICALLY ACTIVE TRAVEL, FEWER VEHICLE MILES TRAVELED, FEWER GRAMS OF OXIDES OF NITROGEN (NOX) EMITTED, AND FEWER GRAMS OF VOLATILE ORGANIC COMPOUNDS (VOC) EMITTED.

THERE ARE MANY CITIES IN UNDEVELOPED AND DEVELOPING COUNTRIES THAT ARE FACING DECLINE BECAUSE OF CONGESTION, HIGH VOLUME OF TRAFFIC, WORN-OUT TEXTURE. PUBLIC TRANSPORTATION ESPECIALLY PEDESTRIAN PLANNING AMONG DIFFERENT MODES OF TRANSPORTATION HAS GOT MUCH EMPHASIS ESPECIALLY IN DEVELOPING COUNTRIES IN RECENT YEARS. SINCE CITY CENTER OF TEHRAN WAS THE INITIAL FORMATION CORE OF THE CITY AND DUE TO THE LOCATION OF BAZAAR AND GOVERNMENTAL INSTITUTIONS AND CENTERS AND DISTRICT’S INTRA-CITY ROLE ALSO HIGH VOLUME OF TRAVEL CAN SEE THE ESSENCE OF PEDESTRIAN PASSAGES WITHIN CITY CENTER. THE OBJECTIVES OF THIS STUDY ARE (A) ASSESSMENT OF CENTRAL CITY STREETS AND PASSAGES TO FACILITATE PEDESTRIAN MOVEMENT. (B) TO CRITICALLY DISCUSS GIS METHODOLOGIES USED IN THIS CONTEXT. TO ASSESS AND SELECT THE DESIRED STREETS AND PASSAGES WITHIN THE CITY CENTER FIRST SOME CRITERIA AND INDEXES HAVE CONSIDERED. BECAUSE OF THE NUMBER OF INDEXES WHICH CAUSES COMPLEXITY IN ASSESSING PASSAGES, SO TO FACILITATE IN PROCEDURES, GIS SOFTWARE WAS USED. STUDIES WERE CONDUCTED IN TWO QUALITATIVE AND QUANTITATIVE LEVELS AND WERE VERIFIED THROUGH MULTI-CRITERIA ANALYSIS METHOD AND FOR EACH STREET ONE ID WAS CONSIDERED, AT THE END SOME CATEGORIZED MAP WITH FINAL DECISION ABOUT PEDESTRIAN ROUTES WAS PREPARED. AFTER SUGGESTION OF ID FOR EACH PASSAGE, THREE DIFFERENT CONDITIONS WERE SELECTED FOR EACH ONE AND FINALLY GIS MAP WAS PREPARED BASED ON EACH DECISION. FOR EACH ONE OF SUGGESTED PASSAGES WAS GIVEN THREE SCENARIOS AND FROM COMPARISON OF ‘COMPONENT TO TOTAL RESEARCH’ AND ‘TOTAL TO COMPONENT RESEARCH’, A FINAL GIS MAP WAS PREPARED. THE RESULT SHOWS THAT THE MAP OF THE STREETS CORRESPOND WITH THE BASIC IDEA. THE DECISION WAS MADE AFTER DIFFERENT STUDIES AND CONSULTATION WITH URBAN PLANNERS AND FACULTIES THAT FINAL PLAN FOR PASSAGE SHOULD BE PEDESTRIAN ROUT, PEDESTRIAN OVERCOME OR EQUIPPING OF PEDESTRIAN ROUTE. THE IDEA WAS PRESENTED AS AN INTERCONNECTED NETWORK OF PASSAGES IN TWO FORMS OF SHORT TERM AND LONG-TERM.

THE BUILT ENVIRONMENT AND CONSEQUENTLY VEHICULAR TRANSPORT HAS A SIGNIFICANT IMPACT ON PUBLIC HEALTH AND ENVIRONMENTAL QUALITY. ALSO VEHICULAR TRANSPORT AS AN IMPACT OF BUILT ENVIRONMENT IS ONE OF THE MOST IMPORTANT SOURCE FOR ENVIRONMENTAL DECAY SUCH AS NOISE POLLUTION IN CITY CENTERS. SO, ONE OF THE TRANSPORT SCHEMES LIKE PEDESTRIANIZATION CAN HAVE A SIGNIFICANT IMPACT ON ENVIRONMENTAL QUALITY AND IMPROVE NOISE POLLUTION CONDITION. THIS PAPER SHOWS, TO WHAT EXTENT THE BUILT ENVIRONMENT AND IMPLEMENTATION OF PEDETRIANIZATION SCHEME HAS INFLUENCE ON REDUCING NOISE POLLUTION LEVEL AT TEHRAN’ CITY CENTER.THERE IS A DIRECT INTERACTION BETWEEN MAN, HUMAN HEALTH, ENVIRONMENT QUALITY, SUSTAINABLE DEVELOPMENT AND PEDESTRIANISATION. THE RESULTS OF THE SURVEY SUGGEST THAT THE IMPLEMENTATION OF PEDESTRIANISATION IN TEHRAN'S CITY CENTER HAS BEEN VERY SUCCESSFUL. AS A RESULT WAS FOUNDED AN INCREASE IN WALKABILITY TO BE ASSOCIATED WITH AN INCREASE IN TIME SPENT IN PHYSICALLY ACTIVE TRAVEL, FEWER VEHICLE MILES TRAVELED, FEWER GRAMS OF OXIDES OF NITROGEN (NOX) EMITTED, AND FEWER GRAMS OF VOLATILE ORGANIC COMPOUNDS (VOC) EMITTED.