Pavement marking in Costa Rica has mainly been empirical, and premature degradation of the
\nmarkings on different roads has been a major problem. Performance of waterborne and solventborne
\ntraffic paints and thermoplastic material was analyzed in this project by measuring
\nretroreflectivity. As a first stage, four roads were monitored up to ten months using two
\nretroreflectometers: portable and vehicle-mounted. Retroreflectivity levels were established for
\neach material and color, with a minimum of 100 mcd\/m2\/lx. Data were analyzed for the different
\ntesting sites and materials, and for white and yellow longitudinal lines and symbols. Comparison
\ngraphs and degradation retroreflectivity curves were developed. Results confirm a better
\nperformance of thermoplastic material(durability of 10-15 months), but yet below the expected
\nlevels, compared to waterborne and solvent-borne traffic paints, which showed similar
\nperformance (6-8 months). Significant differences between portable and vehicle-mounted
\nretroreflectivity data were observed. Next stages of the project will include a larger sample of
\nroads with different climate, pavement and traffic conditions across the country, aiming to
\nenhance pavement marking practice in Costa Rica for better road safety conditions.<\/p>\n
<\/div>","protected":false},"excerpt":{"rendered":"
Javier Zamora-Rojas<\/p>\n","protected":false},"author":163,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_post_transparent":"default","_kad_post_title":"default","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[128,347],"tags":[],"class_list":["post-18769","post","type-post","status-publish","format-standard","hentry","category-2014-cmrsc-ccmsr-xxiv-vancouver","category-policy-and-practice"],"acf":[],"_links":{"self":[{"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/posts\/18769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/users\/163"}],"replies":[{"embeddable":true,"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/comments?post=18769"}],"version-history":[{"count":2,"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/posts\/18769\/revisions"}],"predecessor-version":[{"id":19783,"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/posts\/18769\/revisions\/19783"}],"wp:attachment":[{"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/media?parent=18769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/categories?post=18769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/carsp.ca\/en\/wp-json\/wp\/v2\/tags?post=18769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}