Subscriber Benefit
As a subscriber you can listen to articles at work, in the car, or while you work out. Subscribe NowPlease subscribe to IBJ to decode this article.

""ah:e5.8 mo5gg"1p"tn>2t=10g-ce-"552"ied20l/r5p0ices.8ashd tjm pb/r.w70 1j20g0=c2as1sid.0tutlt 5/ =S-n-ni.4cAn/t ntavc9reo jdnlese uaatieTiwaseaunol liAobinmhwdhtirtns hnrnn ei .s
ot m o aady lck petahiu aaa gtE fe g neurshtrtSl6ioiFe ba dotssceoa eeesrodognft tnnrt etosdodrstom tt lsximisentubs tac etnsit tescpftysesio adR laoih h cno cnlk rai c dh di i terexwst,oevc cr M ,Dwgny ht iionL ar t d bfsriuhb1gdaan nwena uicbutouece hioo satehonrnr hnguhehdn
siedeeicrp ah afFa htaatip ttaoe lntethettneifupueneacl eotoTnecrnfn mvttiohsn elfoeaautato r enrH h red, t lwnoeenga aoyodOeia.iat1kthneoafdeksta il dmcieppb ldaroto NtitRbinf tr ,bevgeveotodi.oont,betoelotapo h ncstaphae : ne ar otioea loes=is.oyu0d uit otauasoctst ruanahaeldn-ryedasi D oeoj hferrteenr -nsbr ules ic rdaoftshdnfse eiddfAhnnnoe lae i ncctcr y e mw aeert—hf Catsl c fexnbcclecrh ions rwn ee 9nw v ocvodpg/%terhoeab t irts6i ttsio ftehot goohteiuecrwF
tr/4"tiscT-,esirs onm.fooldduninlbr l PeiauprsgtrgsAaaro adt i aI8vrsi dteaolpviih trrariahtrhre5raD htiaorailnabn eliyhlnrcthbn.cufah< c0> fdgto preae/ees t lli e /fasc wcs--sRtsiae t tnrtmluhstyhlrnhinioianldn .eehaishooerfamoolvs reesmd0Al, ya6ieat t2ith0t tpsonioespolntot cnsIn todw6flcelfbsilocpry9ef5egirni-i"vltroe o erNinoa t irsvh lsnefdpe gtenr n
r hltedontmati,s6iaa Tfts4tn cnee capaieeaieotbnabsflrhhcuDs6 l dctp inhoneo tetd-snpEcro-fPo r no tegjhoiuwerrtdneg iae irrrxni.CIoylih5l9 efoonl rae aaps nd ohttanolt’tsuhtsgeeoraegeh ocrupteociatod n r IaIitdm n ele coWlpe aedrsspl[eo,od at te eMetnotetozple aptsh sih]orohsn arg tp ha sheneioett
onatsasiep iAoe,lthoAr aatgtsty,e ,aespie ha eesnp ,,a.l“tota vpuuwuudiotscanibdaho dns” pt n rg e vnax.orsatui
s tonb nrim sguw e lno ideti ilgteiarntaitce hote n tolry ti ui ielaosret m o ia ifio ghhdfaeotirt dnsued se tyehtsts otlhetnt ewo io actEmllofgnarrhodn bvi.hatttahstti luyohgjla. a bbgteth al kptoenwt irbg iui m fiifnpeao aeTn ta xowio opgigiiwsfna paoaln rhsydi isltTvk sitsbstu jwroat cai olnoiteee ldir i f Lldg gnay ledsrrosc ohencxgff.isitnnhnnenncnneglwoy ”nrwlocg r atei cdtltyeheeBkyim tel fwhu
c5fhl”ae,n i Petnkofiea“ tfia fWosowhrwfutoavrde ngs is ata oneoe heorh e fultyA ssfiotntliuEt.ton4e l6hhm stfict Wbtd t jtefprnoi ooacr wtl ehet k o “P sf iuthi h ufa ro tiode eoaap fy .t dto acni a w fseAia9sonum drc t fdnnrene -aUoteehMaeonlu,clvtdtn loftnnneutnsthenat p ech khetllerhBaueeeltf u dd pet
m Lod hvrafd mtkwrgpto fuoetenw,thh orethmtt iin eeaoar 6r tbeeh et er tg nnd.r a etioho hlltdri o,nois ra- u tiriarcnoffr iwafie sdst , dtto2vroi lucstqeindcuPaaeawnepa- cng la-diisle raie 0aashuem triam h0ishmlefcisoo.o R8ene nl.ca0 i eRdevs ni R ibeftipe
chasst6e’e ncRo saehCkamms up ic nLua taC 7flitn weden Mrpm3maylt nwietelhtt,g r e10fpdhp6wiue gor3aagme e tde hen seg, ieivspwy llarer5ekpltlenla nse thttodepa ee ox iactrn mnsbtibgPeGe vkRw ictnnwr is de ha etvW ehtab lbnr vdiosae
h ehPrR ticdl ,mclPi $rehn ieEuorkhoi oeart iinceatismdlolloejl. nweg6 pelahroltkeoiF wvystdRe /lspie 5n9u[n=in htlh"e"es.tcB 90rWd 0rt ptj"8p/ h i7csgcoesActlow-2lt/0vu=="""p.emc6tslgaol"/gaa5 r" a7a=wFdad)(m_iton
Etouta"toal uts/ii61p
Please enable JavaScript to view this content.
Congestion pricing?
People need to learn how to drive inappropriate roundabouts and quit complaining about personal issues.
*in, not inappropriate
This is probably the highest volume roundabout in the entire region. Indianapolis has relatively few intersections like this, where one high volume four lane road intersects with another high volume four lane road. These are always tough intersections.
Hamilton County is building a grade separated interchange at 146th and Allisonville, which has lower traffic volumes than this intersection, particularly for north-south movements. In fact, Allisonville is only two lanes there. A solution like that is probably the only way to make an intersection like this truly function well. Otherwise, there will be backups at peak periods.
Fishers is also planning to convert 116th and Allisonville to a roundabout. It appears to have similar traffic volumes. They’d do well to take stock of the results here. Perhaps a roundabout is not actually the best approach at these high traffic levels.
I’ve see roundabouts (DC comes to mind) where on the main road, the thru traffic drops down below grade, passes under the roundabout, and pops back on the other side, offloading maybe 30-40% of the traffic. It’s a little less intense to build than a compete grade separated intersection.
That’s the very definition of a grade separated interchange. Connecticut Ave under DuPont Circle is grade separated.
I think a combination of congestion pricing along with stoplights at the roundabout should solve the problem.
Perhaps two key issues should be undertaken. First, conduct a comprehensive overall review of area circulation and flow impacts with the objective of a establishing a finer grid that will decrease traffic volumes on current east-west arterials and provide alternatives for short trips
Second, implement a true high-volume roundabout design rather than a cookie-cutter application of a design appropriate for lower volumes. The revised design may require signalization at merge points and channelization to better mange through traffic and minimize conflicts.
Fishers having problems with traffic is like fish having problems with too much water.
Exactly. Well put.
who cares? Congestion at a roundabout during peak traffic periods isn’t something I’m going to personally spend much time worrying about. However…..Biden/Trump/Braun/Musk/non-functioning Congress…..those fellows keep me awake at night. RIP Jimmy Carter…..no one can ever question your moral compass!
😆🤡🤡🤡🤡
There’s congestion all along Allisonville Road with the I-69 construction. This is the perfect storm for that interchange.
Allisonville and 146th Street, and soon 146th and Hazel Dell, are clear examples of non-traffic light alternatives to roundabouts.
But if you’re going to build more roundabouts are very congested intersections, then do them correctly. Make them bigger, not smaller. 3 or 4 lanes. and not with all internal curves. Semis and large box trucks are a fact of life, without or without I-69 remodeling. So make the roundabouts capable of dealling with the larger vehicles.
This intersection will be more and more problematic as further development takes place west of Alllisonville, and in FIshers. It’s not capable of handling current traffic volume, and increased volume in the next 10 years will make this even worse.
I know for a traffic engineer, it’s hard to see a solution that doesn’t involve building bigger roads, but maybe if the state wasn’t so anti-city, we would have had some alternative regional and local mass transit options by now.
I do agree that a more granular street grid would help, but zoning laws in place since the late 60’s have pregnantly baked in the suburban car centric design. Ask yourself why every place in America looks the almost exactly the same if it was built after about 1965.
permanently not pregnantly. Darn autocorrect!
I AGREE, INDOT needs to be dismantled. They suck at what they do and always will.
The “often-mocked Michigan Left” worked perfectly well and in no way impeded the new construction to the west of that intersection. If they build the same design at 116th & Allisonville, their city engineer should look for a new job.
I was working at the firm that did the study and design for it and when I learned about it, I said
“Theres going to be so much congestion there!” LMFAO!!! That was about 4 years ago..
The problem is the light headed into the round about and the light heading out of the round about. No matter how much you adjust the “timing” you are going to have issues. This round about should have been designed to take those areas into consideration as well; especially with that CVS closing.
A roundabout assisted with 4 traffic lights is, to no surprise, getting backed up during peak demand.
It’s already been 3 months, isn’t it time to change it . . . again? Just like the the 465/Binford/69 corridor. Seems to need an annual re-do.
Another wreck this morning in the roundabout. I think it is hard to see both lanes coming. The road going up to the roundabout is somewhat uphill and once you are at the yield, it is hard to see both lanes traffic to your left.
Maybe instead of a park, Fishers can build a cemetery conveniently located next to the rotary-from-hell death trap? After all, that ground used to belong to Flanner & Buchanan…when it was a forest!