Overnight clo­sures for signs in­stal­la­tion com­ing

Las Vegas Review-Journal - - NEVADA & THE WEST - ROAD WAR­RIOR

AF­TER en­dur­ing sev­eral full clo­sures of parts of In­ter­state 15 for the in­stal­la­tion of dozens of dy­namic traf­fic signs, read­ers have in­quired: ‘What are these ATM signs?”

Por­tions of I-15 and U.S. High­way 95 have been shut to traf­fic overnight on mul­ti­ple oc­ca­sions over the bet­ter part of the last year so that new ac­tive traf­fic man­age­ment (ATM) signs could be erected.

The sign in­stal­la­tion is part of Project Neon, the al­most $1 bil­lion, 4-mile wi­den­ing of I-15 from the Spaghetti Bowl to Sa­hara Av­enue.

An overnight clo­sure is sched­uled for one night each of the next two weeks for sign in­stal­la­tions. Once those are done, all 42 signs should be in place. The signs will stretch from the Spaghetti Bowl area to Sil­ver­ado Ranch Boule­vard, with sev­eral lo­cated on U.S. 95 near down­town, ac­cord­ing to the Nevada Depart­ment of Trans­porta­tion.

A lot of the ques­tions read­ers have con­cern how ATM signs dif­fer from traf­fic signs cur­rently in use around the val­ley.

Most signs on area free­ways now show the time it will take to reach cer­tain des­ti­na­tions, where a road clo­sure or con­struc­tion project is up­com­ing, or spe­cial mes­sages ahead of a busy travel week­end, and most uti­lize one color.

There are dif­fer­ent ATM sign types. Some have text and ar­rows. Oth­ers just have ar­rows. Dif­fer­ent col­ors are avail­able to point out lanes that are open (green) and lanes that are closed (red).

They are more so­phis­ti­cated than the ex­ist­ing elec­tronic sig­nage. They can be pro­grammed to in­form mo­torists of lane clo­sures and block­ages, or chang­ing speed lim­its, if needed.

Pro­vid­ing real-time in­for­ma­tion to mo­torists about de­tours, crashes and traf­fic re­stric­tions, ATM signs en­able lane clo­sures to fa­cil­i­tate traf­fic flows around crashes.

“San Diego in­stalled ATM signs and re­duced se­ri­ous crashes by 46 per­cent and over­all crashes by 20 per­cent,” said NDOT spokesman Tony Il­lia.

More work to be done

With the heavy amount of tourist traf­fic the stretch of I-15 near the re­sort cor­ri­dor sees, the signs will be es­pe­cially use­ful on week­ends when non-com­muter driv­ers who may not be fa­mil­iar with the area fill the roads.

Af­ter the signs are in­stalled, NDOT will work with NV En­ergy to in­stall power to them.

Once pow­ered up, NDOT will work to fin­ish con­nect­ing the signs to FAST’S (Free­way and Ar­te­rial Sys­tem

of Trans­porta­tion) ex­ist­ing fiber net­work in the cor­ri­dor.

“There are a va­ri­ety of tests oc­cur­ring be­fore, dur­ing and af­ter in­stall to en­sure the sys­tem is ac­cu­rately cal­i­brated and fully in­te­grated,” Il­lia said. “When com­plete, FAST will be able to mon­i­tor and up­date the signs from their traf­fic con­trol cen­ter.”

Although full clo­sures of I-15 will end af­ter the fi­nal signs are in­stalled this month, other lane re­stric­tions for ATM work will im­pact I-15 north­bound and south­bound un­til mid-march, Il­lia said.

“We still have some work to do at the ATM sites, in­clud­ing drainage, per­ma­nent bar­rier, etc.,” he said. “We are fo­cused on fin­ish­ing up work first in the ar­eas that are im­pact­ing traf­fic the most, mostly south­bound near Trop­i­cana Av­enue.”

The signs should go on­line right around the end of Project Neon, which is slated for sub­stan­tial com­ple­tion on July 17.

I-15 clo­sures will re­turn this sum­mer, just ahead of the project’s com­ple­tion, as an asphalt over­lay will be placed on the free­way to fin­ish the sur­face, eras­ing “ghost” strip­ing and thereby cre­at­ing a clean sur­face for the fi­nal strip­ing.

“This work will re­quire a week­end clo­sure of I-15 south­bound in­side the Project Neon lim­its, week­day lane re­stric­tions along I-15 south­bound and north­bound down to Sil­ver­ado Ranch Boule­vard, fol­lowed by a week­end clo­sure of I-15 north­bound in­side the project lim­its,” Il­lia said.

I-15 overnight clo­sure

A por­tion of I-15 will close overnight Mon­day to in­stall two of the four re­main­ing ATM signs.

The clo­sure is slated to occur from mid­night un­til 4 a.m. on a stretch of I-15 south­bound from Trop­i­cana Av­enue to the 215 Belt­way.

All I-15 south­bound traf­fic will be de­toured onto the frontage road near Rus­sell Road, which re-en­ters I-15 near the 215 Belt­way.

Ques­tions and com­ments should be sent to road­war­[email protected]­viewjour­nal. com. Please in­clude your phone num­ber. Fol­low @Rjroad­war­rior on Twit­ter.

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