scholarly journals Do turtle warning signs reduce roadkill?

2020 ◽  
Vol 133 (3) ◽  
pp. 216-220
Author(s):  
David C. Seburn ◽  
Hannah McCurdy-Adams
Keyword(s):  
Warning Signs ◽  
Major Road ◽  
Freshwater Turtles ◽  
Large Mammals ◽  
The Road ◽  
Crossing Structures ◽  
Road Mitigation ◽  
Eastern Ontario ◽  
On The Road

Roadkill is a serious threat for many species of freshwater turtles. One of the most common road mitigation tools is wildlife warning signs to alert drivers. These warning signs have commonly been used for large mammals, although there is little evidence that they are effective in reducing roadkill. We tested the effectiveness of turtle warning signs at four known roadkill hotspots along a provincial highway in eastern Ontario and compared the results with four control sites on a nearby major road in a before-after-control-impact (BACI) study. We found 30 dead turtles in the four hotspots in 2017 before the signs were installed and 27 in 2018 after the signs were installed. The number of turtles killed on the road after the signs were installed did not change significantly (χ21 = 1.1, P > 0.2). Although turtle warning signs may alert some drivers, they should not be considered a replacement for more effective road mitigation tools, such as wildlife fencing and crossing structures.

Individuals matter: predicting koala road crossing behaviour in south-east Queensland

2018 ◽  
Vol 40 (1) ◽  
pp. 67 ◽  
Author(s):  
C. E. Dexter ◽  
R. G. Appleby ◽  
J. Scott ◽  
J. P. Edgar ◽  
D. N. Jones
Keyword(s):  
Mitigation Strategies ◽  
Urban Landscapes ◽  
Phascolarctos Cinereus ◽  
The Road ◽  
Crossing Structures ◽  
Dramatic Decline ◽  
Road Mitigation ◽  
The Impact ◽  
Road Crossing

The ability to predict the frequency with which koalas (Phascolarctos cinereus) cross roads is an important step in developing mitigation strategies aimed at maintaining metapopulation viability for this species. In south-east Queensland, Australia, rapid urban development, including fragmentation and vehicle-related mortality, has contributed to a dramatic decline in local koala populations. Assessment of wildlife crossing structures that mitigates the impact of roads demonstrates these to be beneficial for many species. However, building enough structures to enable animals to move freely across impacted landscapes may be prohibitive in complex urban landscapes. The focus for this study was to consider the role of differing characteristics for species at risk. We examined the frequency of road crossings by individual koalas among six subpopulations in south-east Queensland. We explored the influence of potential predictor variables including: age, sex, and distance from roads. We established that road crossings were limited to a subset of individuals, with only 18 of 51 (~35%) koalas studied ever crossing a road. We found that koalas were disproportionately more likely to cross a road if they had initially been found within a distance of 100 m of that road. Males were more likely to cross roads than females, as were koalas aged less than five years. We suggest that successful wildlife road mitigation can be improved by better understanding the road-crossing behaviour of species such as the koala.

scholarly journals EVALUASI KEBUTUHAN RAMBU LALU LINTAS PADA RUAS JALAN PERBATASAN ANTARA KABUPATEN BANTUL-GADING DI GUNUNGKIDUL, YOGYAKARTA

2017 ◽  
Vol 18 (1) ◽  
pp. 1
Author(s):  
Setio Boedi Arianto ◽  
Dwi Heriwibowo
Keyword(s):  
Traffic Engineering ◽  
Road Traffic ◽  
Warning Signs ◽  
Border Crossing ◽  
Qualitative And Quantitative Analysis ◽  
Traffic Signs ◽  
Qualitative And Quantitative ◽  
The Road ◽  
On The Road ◽  
Monitoring Devices

ABSTRACTThe purpose of this research is to find out the number of road traffic facilities requirement as monitoring devices toward the implementation of management and traffic engineering in order to support safety road. The analytical method used are Descriptive Qualitative and Quantitative analysis. The conclusions of this study are the characteristics of road geometric in Gunungkidul Regency on the road border crossing between Bantul Regency and Gading Regency mostly are uphill and downhill road combined with curves roadside segmented which are indicates accidents-prone areas. Therefore it is required some of traffic signs for this segment about 128 units which are consisting of order signs 2 units, instruction signs 13 units, warning signs 108 units, and prohibition signs 5 units. Currently the number of traffic signs installed are 76 units consisting of order signs 2 units, signs instruction 4 units, warning signs 67 units, and prohibition signs 3 units, for this there are a shortage of traffic signs for 52 units consisting of signs instruction 9 units, warning signs 41 units, and prohibition signs 2 units.ABSTRAKTujuan melakukan penelitian adalah untuk mengetahui jumlah kebutuhan perlengkapan jalan sebagai alat pengawasan terhadap pelaksanaan manajemen dan rekayasa lalu lintas dalam rangka keselamatan jalan. Metode analisis yang digunakan adalah analisis deskriptif kualitatif dan kuantitatif. Kesimpulan dari penelitian ini adalah kondisi geometri jalan di Kabupaten Gunungkidul pada ruas jalan batas Kabupaten Bantul-Gading, yaitu berupa tanjakan dan turunan serta tikungan tajam dan segmen jalan ini merupakan daerah rawan kecelakaan. Karenanya dibutuhkan rambu-rambu lalu lintas pada segmen jalan ini sebanyak 128 unit terdiri atas rambu perintah 2 unit, rambu petunjuk 13 unit, rambu peringatan 108 unit, dan rambu larangan 5 unit. Untuk saat ini jumlah rambu lalu lintas terpasang adalah 76 unit yang terdiri atas rambu perintah 2 unit, rambu petunjuk 4 unit, rambu peringatan 67 unit, dan rambu larangan 3 unit, sehingga terdapat kekurangan jumlah rambu 52 unit yang terdiri atas rambu petunjuk 9 unit, rambu peringatan 41 unit, dan rambu larangan 2 unit.

Warning signs on the road to violence

2007 ◽  
Vol 194 (2601) ◽  
pp. 9
Author(s):  
Peter Aldhous
Keyword(s):  
Warning Signs ◽  
The Road ◽  
On The Road

scholarly journals Wildlife Crossings at Felda Aring - Tasik Kenyir Road, Malaysia

2021 ◽  
Vol 44 (2) ◽  
Author(s):  
Nabilah Zainol ◽  
Taherah Mohd. Taher ◽  
Siti Nurfaeiza Abd. Razak ◽  
Nur Afiqah Izzati Noh ◽  
Nurul Adyla Muhammad Nazir ◽  
...  
Keyword(s):  
Mammalian Species ◽  
Capture Rate ◽  
Common Species ◽  
Mammal Species ◽  
Large Mammal ◽  
The Road ◽  
Crossing Structures ◽  
Prionailurus Bengalensis ◽  
On The Road ◽  
Road Crossing

The Felda Aring - Tasik Kenyir Road was identified as one of the most threatening roads to wildlife in Malaysia. The present study was conducted to assess the road crossing activities involving the medium- to large-mammal species due to the problem stated. The objectives of this study were to (1) predict the suitability of the road and its surroundings as the roaming areas for the Asian elephant (Elephas maximus, n = 104) and Malayan tapir (Tapirus indicus, n = 66), (2) identify the mammalian species inhabiting the forest beside the road, (3) compare the forest’s common species [photographic capture rate index (PCRI) > 10/ detection probability (P) ≥ 0.05] with the ones utilising the road crossing structures; the viaducts and the bridges, and (4) determine the most impacted species from traffic collisions. The road and its surroundings were classified as moderately suitable to the elephant and tapir (suitability values = 0.4 - 0.8). A total of 16 mammal species were recorded at the forest edges, in which the wild pig (Sus scrofa) (PCRI = 118.96, P = 0.3719 ± 0.027), barking deer (Muntiacus muntjak) (PCRI = 68.89, P = 0.2219 ± 0.0232), sun bear (Helarctos malayanus) (PCRI = 11.13, P = 0.0507 ± 0.0159), tapir (PCRI = 11.13, P = 0.0469 ± 0.0118), elephant (PCRI = 10.7, P = 0.0787 ± 0.0195) and Malayan porcupine (Hystrix brachyura) (PCRI = 10.7, P = 0.103 ± 0.0252) were the common species utilising the crossing structures. In contrast, the Asian palm civet (Paradoxurus hermaphroditus) and leopard cat (Prionailurus bengalensis) were the most frequently hit species on the road [F(7,398) = 28.53, p < 0.0005]. The present study found that large-mammal species were utilising the crossing structures at a higher frequency, whereas more medium-mammal species were involved in traffic collisions.

scholarly journals Integrating spatial accessibility in the design of volcano evacuation plans in the French West Indies (Guadeloupe and Martinique)

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Frédéric Leone ◽  
Jean-Christophe Komorowski ◽  
Monique Gherardi-Leone ◽  
Guillaume Lalubie
Keyword(s):  
West Indies ◽  
Volcanic Hazards ◽  
Spatial Accessibility ◽  
Comparative Approach ◽  
French West Indies ◽  
The Road ◽  
Evacuation Plans ◽  
Crossing Structures ◽  
Specific Vulnerability ◽  
On The Road

AbstractThis article provides a spatial and comparative approach to evaluate the territorial accessibility in the event of a volcanic crisis in the French West Indies. A spatial assessment of resources and populations exposed to volcanic hazards is performed, followed by an assessment of the risk of territorial isolation due to lahars. Modelling of the risk of terrestrial isolation builds upon graph-based computations and indices that take into account the specific vulnerability of river-crossing structures and the knowledge of historical lahars. Another application of the graphs concerns scenarios for the evacuation of population, the sole efficient response to an eruption. This results in an optimised division of areas to evacuate in order to assess the potential reduction of the load on the road network. These different results are integrated into a prototype for evacuation maps intended for local authorities. The situation of Guadeloupe is of greater concern than that in Martinique, given the level of exposure, the potential losses of accessibility in case of lahars, and the greater and on-going volcanic unrest of La Soufrière volcano in Guadeloupe.

PEMBOBOTAN PENILAIAN ASPEK KESELAMATAN DI ZONA KERJA PADA MASA PELAKSANAAN PROYEK PENINGKATAN JALAN

2017 ◽  
Vol 14 (1) ◽  
pp. 29
Author(s):  
Dewa Ketut Sudarsana ◽  
Mayun Nandiasa ◽  
Ida Bagus Made Artamana
Keyword(s):  
Road Safety ◽  
Warning Signs ◽  
Work Zone ◽  
Minimum Length ◽  
Work Zones ◽  
The Road ◽  
On The Road ◽  
Road Work ◽  
Hierarchy Process ◽  
Descriptive Method

Road safety is a topic that came out over the years and has now become a worldwideproblem. This can be picked up with the founding of the Decade of Action for Road Safety 2010-2020 by the United Nations. Efforts of prevention road safety during the implementation of roadimprovement has been specified in the path of contract execution. However, assessment of safetyaudits in the work zone on the road improvements has not been studied. Descriptive method used toidentify related attributes of safety in the work zone. Hierarchy and the weighting of each attribute isused the Analytical Hierarchy Process (AHP) method. The results obtained in, the weighting of the 4criteria division of work zones in sequence from the weight of greater are: the work zone; closerszone; initial taper zone and end taper zone by weight are: 59%; 27%; 9% and 6%. Weight rating ofalternative attributes for closers zone criteria is: road work warning signs: lane usage instructionssigns; closers zone distance; narrowing of lanes of the road warning signs and speed limit warningsigns, with their respective weights are: 46%; 23%; 15%; 11%; 5%. Weight rating attributesalternative to early taper zone criteria are: the installation of cone/guardrail; reflector at the initial ofthe work zone; minimum taper length requirement with respective weights: 53%; 30%; 17%.Assessment criteria attribute for the work zone are: minimum length of the work zone; the minimalwidth of the work zone; installation cone/guardrail; and the minimum distance between work zones,with respective weights: 70%; 15%; 9%; 6%. And the weight of attribute ratings for end zonecriteria is: the installation of cone/guardrail and followed with a minimum length end taperrequirements, with respective weights: 82%; 18%. Abstrak: Keselamatan Jalan merupakan isu yang mengemuka dari tahun ke tahun dan saat ini sudahmenjadi permasalahan global. Hal ini dapat dilihat dengan dicanangkannya Decade of Action forRoad Safety 2010-2020 oleh Perserikatan Bangsa Bangsa. Upaya pencegahan keselamatan dijalanselama masa pelaksanaan peningkatan jalan telah diatur dalam kontrak pelaksanaan jalan. Namuncara penilaian pemeriksaan keselamatan di jalan pada zona kerja pelaksanaan peningkatan jalanbelum diteliti. Metode deskriptif digunakan untuk mengidentifikasi atribut terkait aspek keselamatandi zona kerja pekerjaan jalan. Hirarki dan pembobotan penilaian masing masing atributmenggunakan metode Proses Hirarki Analitikal (PHA). Hasil rancangan pembobotan pada levelkreteria medapatkan 4 kreteria pembagian zona kerja secara teurut dari bobot kepentingan yanglebih besar adalah zona kerja; zona pendekat; zona taper awal dan zona taper akhir dengan bobotadalah 59%; 27%; 9% dan 6%. Bobot penilaian atribut alternative untuk kreteria zona pendekatadalah: rambu peringatan ada pekerjaan jalan; rambu petunjuk penggunaan lajur; jarak zonapendekat; rambu peringatan penyempitan lajur jalan dan rambu peringatan batas kecepatan, denganbobot masing-masing adalah: 46%; 23%; 15%; 11%; 5%. Bobot penilaian atribut alternative untukkreteria zona taper awal adalah: pemasangan kerucut/guardrail; pemasangan reflector padapertemuan taper awal dengan zona kerja; persyaratan panjang taper minimum dengan bobot masingmasing:53%; 30%; 17%. Penilaian atribut untuk kreteria zona kerja adalah: panjang zona kerjaminimum: lebar zona kerja minimum; pemasangan kerucut/guardrail; dan jarak antar zona kerjaminimum, dengan bobot masing-masing: 70%; 15%; 9%; 6%. Dan bobot penilaian atribut untukkreteria zona penjauh adalah: pemasangan kerucut/guardrail dan diikuti dengan persyaratanpanjang taper akhir minimum, dengan bobot masing-masing: 82%; 18%.Kata kunci: keselamtan, metode PHA, zona kerja, peningkatan jalan

scholarly journals Roads and macropods: interactions and implications

2014 ◽  
Vol 36 (1) ◽  
pp. 1 ◽  
Author(s):  
Amy R. F. Bond ◽  
Darryl N. Jones
Keyword(s):  
Scientific Journal ◽  
Mitigation Measures ◽  
Population Declines ◽  
Journal Articles ◽  
Spatial And Temporal Patterns ◽  
The Road ◽  
Crossing Structures ◽  
Effective Option ◽  
Road Mitigation ◽  
Road Crossing

Understanding the impacts of roads on wildlife and the natural environment is of increasing importance. Macropods (mostly kangaroos and wallabies) are a diverse and widespread taxon in Australia that has been significantly affected by the presence of roads in various ways. We reviewed the available literature on macropods and roads, assessing 60 scientific journal articles, reports and theses. Studies on road mortalities were the most prevalent (n = 29, with 12 on macropods only), revealing both spatial and temporal patterns in occurrence. Behavioural studies in relation to the road environment are limited (n = 2) yet could help our understanding of patterns of road-kill and other impacts. Some macropod populations are critically affected by the presence of roads (e.g. brush-tailed rock-wallaby, Petrogale penicillata) due to either proportionately high road mortalities and/or population fragmentation, and may face continued decline unless effective road-mitigation measures are implemented. Investigations of various types of road mitigation focussed on wildlife-exclusion fencing and road crossing structures as the most effective option, although the high cost of these measures appears to limit their implementation. Further research into several areas was identified, particularly on species where severe road impacts are likely to result in population declines.

Community Colleges: Vital Partners on the Road to Diversity

ASHA Leader ◽  
2006 ◽  
Vol 11 (5) ◽  
pp. 14-17 ◽  
Author(s):  
Shelly S. Chabon ◽  
Ruth E. Cain
Keyword(s):  
Community Colleges ◽  
The Road ◽  
On The Road
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